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You searched for: Journal Avian pathology Remove constraint Journal: Avian pathology Subject Infectious bronchitis virus Remove constraint Subject: Infectious bronchitis virus Text Availability Citation in PubAg Remove constraint Text Availability: Citation in PubAg
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1. Pathological effect of different avian infectious bronchitis virus strains on the bursa of Fabricius of chickens

Author:
Xinyan Tang; Jingyi Qi; Lu Sun; Jing Zhao; Guozhong Zhang; Ye Zhao
Source:
Avian pathology 2022 v.51 no.4 pp. 339-348
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; bursa of Fabricius; genotype; histopathology; immune response; infectious bronchitis; interleukin-6; interleukin-8; pathogens; reproductive system; viral load
Abstract:
... Infectious bronchitis is an acute and highly contagious disease caused by avian infectious bronchitis virus (IBV). As well as the typical clinical respiratory signs, such as dyspnoea and tracheal rales, QX genotype strains can also cause damage to the urinary system and reproductive system. Our previous studies found that chickens infected with QX-type IBV also displayed damage to the bursa of Fab ...
DOI:
10.1080/03079457.2022.2063710

2. The inactivated infectious bronchitis virus (IBV) vaccine used as booster in layer hens influences the breadth of protection against challenge with IBV variants

Author:
J. J. (Sjaak) de Wit; Peter De Herdt; Jane K. A. Cook; Marianna Andreopoulou; Irene Jorna; H. C. (Rik) Koopman
Source:
Avian pathology 2022 v.51 no.3 pp. 244-256
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; antigens; egg production; live vaccines; vaccination; Massachusetts
Abstract:
... To achieve long term protection of laying and breeding hens against aberrant egg production caused by infectious bronchitis virus (IBV), a vaccination programme incorporating both live-attenuated and inactivated IBV vaccines is required. High quality IBV vaccines of both types are widely available, but the number of IBV variants of global importance continues to increase and it is not possible to ...
DOI:
10.1080/03079457.2022.2040731

3. Effect of assay choice, viral concentration and operator interpretation on infectious bronchitis virus detection and characterization

Author:
Claudia Maria Tucciarone; Giovanni Franzo; Matteo Legnardi; Andrea Fortin; Viviana Valastro; Elena Lazzaro; Calogero Terregino; Mattia Cecchinato
Source:
Avian pathology 2021 v.50 no.4 pp. 357-365
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; bioinformatics; birds; cost effectiveness; genes; sequence analysis; vaccines
Abstract:
... Despite the efforts to achieve a consistent classification scheme based on the complete S1 gene, the genetic characterization of infectious bronchitis virus (IBV) is often performed on partial S1 regions due to economic and time constraints in the diagnostic routine. Sanger sequencing remains the most common and cost-effective option even if the analysis of samples where multiple field and vaccine ...
DOI:
10.1080/03079457.2021.1959897

4. Infectious bronchitis virus in Australia: a model of coronavirus evolution – a review

Author:
José A. Quinteros; Jagoda Ignjatovic; Kapil K. Chousalkar; Amir H. Noormohammadi; Glenn F. Browning
Source:
Avian pathology 2021 v.50 no.4 pp. 295-310
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; Severe acute respiratory syndrome coronavirus 2; birds; evolution; genes; genotype; models; monitoring; mortality; pathogenicity; respiratory tract diseases; tissue tropism; vaccination; Australia
Abstract:
... Infectious bronchitis virus (IBV) was first isolated in Australia in 1962. Ongoing surveillance and characterization of Australian IBVs have shown that they have evolved separately from strains found throughout the rest of the world, resulting in the evolution of a range of unique strains and changes in the dominant wild-type strains, affecting tissue tropism, pathogenicity, antigenicity, and gene ...
DOI:
10.1080/03079457.2021.1939858

5. An unusual case of haemorrhagic bursa in a pullet flock associated with a genogroup 2 infectious bursal disease virus

Author:
Jessica Higgins; Eva Wallner-Pendleton; Linda Michel; Daral Jackwood
Source:
Avian pathology 2021 v.50 no.3 pp. 269-276
ISSN:
1465-3338
Subject:
Avian orthoavulavirus 1; Chicken anemia virus; Fowlpox virus; Gallid alphaherpesvirus 1; Infectious bronchitis virus; Infectious bursal disease virus; Influenza A virus; Mycoplasma gallisepticum; Mycoplasma synoviae; amino acid sequences; flocks; histopathology; infectious bursal disease; microscopy; mortality; necropsy; necrosis; pullets; specific pathogen-free animals; virulence; viruses; Ontario
Abstract:
... An unusual case of infectious bursal disease (IBD) was observed in eight-week-old commercial caged pullets. This flock (House 1) exhibited a one-day spike in mortality. On gross necropsy examination, enlarged, diffusely haemorrhagic bursas were observed. This lesion has been frequently described in cases of very virulent infectious bursal disease virus (vvIBDV). A five-week-old caged pullet flock ...
DOI:
10.1080/03079457.2021.1912287

6. Characterization of infectious bronchitis virus D181, a new serotype (GII-2)

Author:
R. J. Molenaar; R. Dijkman; J. J. de Wit
Source:
Avian pathology 2020 v.49 no.3 pp. 243-250
ISSN:
1465-3338
Subject:
DNA primers; Infectious bronchitis virus; cecum; computer simulation; conjunctiva; egg production; genes; genotype; hens; immunohistochemistry; lungs; polymerase chain reaction; poultry diseases; serotypes; tonsils; Belgium; Germany
Abstract:
... This paper describes the characterization of a new infectious bronchitis virus (IBV) strain D181, that rapidly evolved from a low-level incidental finding in 2017 to become the second most isolated IBV strain in Dutch layers and breeders in 2018, as well as being found in samples from Germany and Belgium. Based on the sequence of the S gene and the results of cross-neutralization tests, D181 can b ...
DOI:
10.1080/03079457.2020.1713987

7. Co-infections of chickens with avian influenza virus H9N2 and Moroccan Italy 02 infectious bronchitis virus: effect on pathogenesis and protection conferred by different vaccination programmes

Author:
Sakhia F. Z. Belkasmi; Siham Fellahi; Charifa Drissi Touzani; Fatima Zahra Faraji; Imane Maaroufi; Maxence Delverdier; Jean-Luc Guérin; Ouafaa Fassi Fihri; Mohammed El Houadfi; Mariette F. Ducatez
Source:
Avian pathology 2020 v.49 no.1 pp. 21-28
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; Influenza A virus; avian influenza; chickens; disease progression; inactivated vaccines; laboratory experimentation; live vaccines; mixed infection; pathogenicity; signs and symptoms (animals and humans); specific pathogen-free animals; vaccination; viruses; Morocco
Abstract:
... Since the emergence of low pathogenic avian influenza (LPAI) H9N2 viruses in Morocco in 2016, severe respiratory problems have been encountered in the field. Infectious bronchitis virus (IBV) is often detected together with H9N2, suggesting disease exacerbation in cases of co-infections. This hypothesis was therefore tested and confirmed in laboratory conditions using specific-pathogen-free chicke ...
DOI:
10.1080/03079457.2019.1656328

8. Effect of IBV D1466 on egg production and egg quality and the effect of heterologous priming to increase the efficacy of an inactivated IBV vaccine

Author:
J. J. (Sjaak) de Wit; Christiaan ter Veen; H. C. (Rik) Koopman
Source:
Avian pathology 2020 v.49 no.2 pp. 185-192
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; antigens; egg production; egg quality; eggs; genotype; inactivated vaccines; vaccination; viruses; Massachusetts
Abstract:
... To protect layers, breeders and grandparents against damage by infectious bronchitis virus infections during the laying period, vaccination using live priming followed by a boost with inactivated IB vaccine is commonly used. For many IB variants, homologous live vaccines are not available for priming. Very little is known about the efficacy of priming with heterologous live IB vaccines (or combina ...
DOI:
10.1080/03079457.2019.1710462

9. New PA/1220/98-like variant of infectious bronchitis virus in Poland

Author:
Katarzyna Domanska-Blicharz; Joanna Sajewicz-Krukowska; Anna Lisowska
Source:
Avian pathology 2020 v.49 no.4 pp. 380-388
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; egg production; genes; genotype; viruses; Poland
Abstract:
... The aim of the present study was to report the first detection of a new infectious bronchitis virus (IBV) variant in Polish commercial flocks which is completely different to any previously known in this region. In 2018, samples from Ross 308 breeding hens aged 35 weeks were delivered for IBV diagnosis. IBV presence was detected, but all attempts to amplify the S gene fragment were negative. The f ...
DOI:
10.1080/03079457.2020.1754332

10. Protection following simultaneous vaccination with three or four different attenuated live vaccine types against infectious bronchitis virus

Author:
Mark W. Jackwood; Randi Clark; Sunny Cheng; Brian J. Jordan
Source:
Avian pathology 2020 v.49 no.4 pp. 335-341
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; live vaccines; vaccination; viruses
Abstract:
... Two or more different live attenuated infectious bronchitis virus (IBV) vaccine types are often given to broilers to induce homologous protection as well as to broaden protection against other IBV types in the field. However, the ability of broilers to respond to three or four different antigenic types of IBV vaccine has not been examined experimentally. In this study, we vaccinated one-day-old br ...
DOI:
10.1080/03079457.2020.1748173

11. Risks and disease aetiologies of compromised performance in commercial broilers kept at lower stocking density and limited antimicrobial use

Author:
Beatrice Grafl; Barbara Gaußmann; Tarik Sulejmanovic; Claudia Hess; Michael Hess
Source:
Avian pathology 2020 v.49 no.6 pp. 621-630
ISSN:
1465-3338
Subject:
Adenoviridae; Avian orthoreovirus; Escherichia coli; Infectious bronchitis virus; altitude; ascites; coccidiostats; farms; flocks; health status; metabolic diseases; mortality; poultry production; profitability; statistical analysis; yolk sac
Abstract:
... The health status of broilers raised at lower stocking density and limited antimicrobial use (but routine anticoccidials) was assessed in order to identify prevalent causes of disease, mortality and reduced performance. “Dead-on-farm”(DOF) broilers from 145 commercial flocks were investigated at two different time points (TP1:7–14 and TP2:28–35 days of age); per sampling, 6–10 DOF broilers were se ...
DOI:
10.1080/03079457.2020.1805411

12. Spotlight on avian coronaviruses

Author:
J. J. (Sjaak) de Wit; Jane K. A. Cook
Source:
Avian pathology 2020 v.49 no.4 pp. 313-316
ISSN:
1465-3338
Subject:
Alphacoronavirus; COVID-19 infection; Infectious bronchitis virus; RNA; Severe acute respiratory syndrome coronavirus 2; guineafowl; mammals; pheasants
Abstract:
... Coronaviruses (CoVs) mainly cause enteric and/or respiratory signs. Mammalian CoVs including COVID-19 (now officially named SARS-CoV-2) belong to either the Alphacoronavirus or Betacoronavirus genera. In birds, the majority of the known CoVs belong to the Gammacoronavirus genus, whilst a small number are classified as Deltacoronaviruses. Gammacoronaviruses continue to be reported in an increasing ...
DOI:
10.1080/03079457.2020.1761010

13. Avian influenza H9N2 subtype in Ghana: virus characterization and evidence of co-infection

Author:
Joseph A. Awuni; Alice Bianco; Otilia J. Dogbey; Alice Fusaro; Daniel T. Yingar; Annalisa Salviato; Patrick T. Ababio; Adelaide Milani; Francesco Bonfante; Isabella Monne
Source:
Avian pathology 2019 v.48 no.5 pp. 470-476
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; Influenza A virus; amino acids; animal health; avian influenza; egg production; farms; genome; intravenous injection; laying hens; mixed infection; monitoring; mortality; mutation; pathogenicity; phylogeny; sequence analysis; viruses; Ghana
Abstract:
... Between November 2017 and February 2018, Ghanaian poultry producers reported to animal health authorities a dramatic increase in mortality rate and a relevant drop in egg production in several layer hen farms. Laboratory investigations revealed that the farms had been infected by the H9N2 influenza subtype. Virological and molecular characterization of the viruses identified in Ghana is described ...
DOI:
10.1080/03079457.2019.1624687

14. Cross-species transmission of poultry pathogens in backyard farms: ducks as carriers of chicken viruses

Author:
Maude Pauly; Chantal J. Snoeck; Vannaphone Phoutana; Amphone Keosengthong; Aurélie Sausy; Latdavone Khenkha; Phonethipsavanh Nouanthong; Bounthome Samountry; Prapan Jutavijittum; Keooudomphone Vilivong; Judith M. Hübschen; Antony P. Black; Sisavath Pommasichan; Claude P. Muller
Source:
Avian pathology 2019 v.48 no.6 pp. 503-511
ISSN:
1465-3338
Subject:
Avian orthoavulavirus 1; Chicken anemia virus; DNA; Infectious bronchitis virus; Newcastle disease; RNA; animal viruses; antibodies; breeding sites; chickens; cloaca; ducks; enzyme-linked immunosorbent assay; farms; host range; pathogenicity; phylogeny; polymerase chain reaction; rearing; vaccination; virus transmission; viruses; Laos
Abstract:
... In backyard farms of Lao People’s Democratic Republic, mixed-species rearing of poultry is a breeding-ground for cross-species transmission. Here, the epidemiology of viruses circulating among backyard poultry in Vientiane Province was assessed to guide future control strategies. Oral/tracheal and cloacal swabs, collected from 605 poultry (308 ducks, 297 chickens) between 2011 and 2015, were scree ...
DOI:
10.1080/03079457.2019.1628919

15. Genetic and antigenic heterogeneity of infectious bronchitis virus in South America: implications for control programmes

Author:
Ana Marandino; Ariel Vagnozzi; María Isabel Craig; Gonzalo Tomás; Claudia Techera; Yanina Panzera; Federico Vera; Ruben Pérez
Source:
Avian pathology 2019 v.48 no.3 pp. 270-277
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; RNA; birds; flocks; genetic analysis; genetic variation; genome; monitoring; mutation; phylogeny; poultry industry; serotypes; vaccination; vaccines; viruses; Argentina; Brazil; Chile; Colombia; Peru; Uruguay
Abstract:
... Infectious bronchitis virus (IBV) is a persistent sanitary problem for the South American poultry industry despite extensive vaccination. The IBV single-stranded RNA genome has high rates of mutation and recombination that generate a notorious virus variability. Since most IBV vaccines are type-specific, there is a need for constant surveillance of the circulating lineages and knowledge about thei ...
DOI:
10.1080/03079457.2019.1583315

16. Investigation of suspected Newcastle disease (ND) outbreaks in Egypt uncovers a high virus velogenic ND virus burden in small-scale holdings and the presence of multiple pathogens

Author:
Ibrahim Moharam; Alaa Abd el Razik; Hesham Sultan; Mohammed Ghezlan; Clement Meseko; Kati Franzke; Timm Harder; Martin Beer; Christian Grund
Source:
Avian pathology 2019 v.48 no.5 pp. 406-415
ISSN:
1465-3338
Subject:
Avian orthoavulavirus 1; Infectious bronchitis virus; Influenza A virus; Newcastle disease; animal viruses; birds; cell culture; diagnostic techniques; distress; farms; genes; mixed infection; mortality; pathotypes; phylogeny; poultry; quantitative polymerase chain reaction; reverse transcriptase polymerase chain reaction; signs and symptoms (animals and humans); vaccination; vaccines; viral load; virulence; virus transmission; viruses; Egypt
Abstract:
... Highly contagious Newcastle disease (ND) is associated with devastating outbreaks with highly variable clinical signs among gallinaceous birds. In this study we aimed to verify clinical ND suspicions in poultry holdings in Egypt suffering from respiratory distress and elevated mortality, comparing two groups of ND-vaccinated poultry holdings in three governorates. Besides testing for Newcastle dis ...
DOI:
10.1080/03079457.2019.1612852

17. Spotlight on avian pathology: infectious bronchitis virus

Author:
J. J. (Sjaak) de Wit; Jane K. A. Cook
Source:
Avian pathology 2019 v.48 no.5 pp. 393-395
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; bacterial infections; chickens; inactivated vaccines; infectious bronchitis; live vaccines; vaccination
Abstract:
... Infectious bronchitis is a highly infectious disease of the domestic chicken of all ages and type, affecting the respiratory, renal and reproductive systems. Secondary bacterial infections are common and have a serious economic and welfare impact. Many genotypic and serotypic variants of infectious bronchitis virus (IBV) exist worldwide, making diagnosis difficult, and challenging control strategi ...
DOI:
10.1080/03079457.2019.1617400

18. Assessment of Mycoplasma gallisepticum vaccine efficacy in a co-infection challenge model with QX-like infectious bronchitis virus

Author:
Dauda G. Bwala; Ponman Solomon; Neil Duncan; Daniel B.R. Wandrag; Celia Abolnik
Source:
Avian pathology 2018 v.47 no.3 pp. 261-270
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; Mycoplasma gallisepticum; air sacs; cecum; chickens; heart; kidneys; liver; lungs; mixed infection; models; pathogens; quantitative polymerase chain reaction; respiratory tract diseases; signs and symptoms (animals and humans); tonsils; vaccines; virulent strains
Abstract:
... Mycoplasma gallisepticum (MG) is the primary cause of chronic respiratory disease in poultry. We investigated the protective efficacy of the live-attenuated ts-11 and 6/85 MG vaccines against a local MG strain and, in order to enhance signs and mimic a typical field situation, we co-infected birds with a virulent strain of QX-like infectious bronchitis virus (IBV). Both vaccines showed similar abi ...
DOI:
10.1080/03079457.2018.1440064

19. Detection of different genotypes of infectious bronchitis virus and of infectious bursal disease virus in European broilers during an epidemiological study in 2013 and the consequences for the diagnostic approach

Author:
J. J. de Wit; C. Cazaban; R. Dijkman; G. Ramon; Y. Gardin
Source:
Avian pathology 2018 v.47 no.2 pp. 140-151
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; Infectious bursal disease virus; antibodies; birds; drinking water; epidemiological studies; flocks; genotype; hatcheries; infectious bronchitis; infectious bursal disease; kidneys; live vaccines; reverse transcriptase polymerase chain reaction; vaccination; France; Germany; Greece; Irish Republic; Italy; Massachusetts; Netherlands; Poland; Portugal; Spain; United Kingdom
Abstract:
... To gather recent data regarding the infectious bronchitis (IB) and infectious bursal disease (IBD) situation in Europe, a large-scale field epidemiological survey using diagnostic samples has been implemented in 2013 for about six months in several European countries: France, Germany, Greece, Italy, the Netherlands, Poland, Portugal, the Republic of Ireland, Spain and the UK. In 234 flocks that we ...
DOI:
10.1080/03079457.2017.1387231

20. Development and evaluation of novel recombinant adenovirus-based vaccine candidates for infectious bronchitis virus and Mycoplasma gallisepticum in chickens

Author:
Dongchao Zhang; Yuqing Long; Meng Li; Jianfang Gong; Xiaohui Li; Jing Lin; Jiali Meng; Keke Gao; Ruili Zhao; Tianming Jin
Source:
Avian pathology 2018 v.47 no.2 pp. 213-222
ISSN:
1465-3338
Subject:
Adenoviridae; Infectious bronchitis virus; Mycoplasma gallisepticum; antibodies; chickens; chicks; financial economics; glycoproteins; histopathology; infectious bronchitis; mycoplasmosis; poultry industry; respiratory tract diseases; secondary immunization; signs and symptoms (animals and humans); specific pathogen-free animals; vaccines; virulence
Abstract:
... Avian infectious bronchitis caused by the infectious bronchitis virus (IBV), and mycoplasmosis caused by Mycoplasma gallisepticum (MG) are two major respiratory diseases in chickens that have resulted in severe economic losses in the poultry industry. We constructed a recombinant adenovirus that simultaneously expresses the S1 spike glycoprotein of IBV and the TM-1 protein of MG (pBH-S1-TM-1-EGFP) ...
DOI:
10.1080/03079457.2017.1403009

21. Disclosing respiratory co-infections: a broad-range panel assay for avian respiratory pathogens on a nanofluidic PCR platform

Author:
Guillaume Croville; Charlotte Foret; Pauline Heuillard; Alexis Senet; Mattias Delpont; Mohammed Mouahid; Mariette F. Ducatez; Faouzi Kichou; Jean-Luc Guerin
Source:
Avian pathology 2018 v.47 no.3 pp. 253-260
ISSN:
1465-3338
Subject:
quantitative polymerase chain reaction; Gallid alphaherpesvirus 1; Metapneumovirus; DNA primers; Influenza A virus; Ornithobacterium rhinotracheale; respiratory tract diseases; turkeys; pathogens; environmental factors; Chlamydophila psittaci; Mycoplasma; Infectious bronchitis virus; Aspergillus; screening; mixed infection; Avibacterium paragallinarum; Pasteurella multocida; Escherichia coli
Abstract:
... Respiratory syndromes (RS) are among the most significant pathological conditions in edible birds and are caused by complex coactions of pathogens and environmental factors. In poultry, low pathogenic avian influenza A viruses, metapneumoviruses, infectious bronchitis virus, infectious laryngotracheitis virus, Mycoplasma spp. Escherichia coli and/or Ornithobacterium rhinotracheale in turkeys are c ...
DOI:
10.1080/03079457.2018.1430891

22. Evaluation of full S1 gene sequencing of classical and variant infectious bronchitis viruses extracted from allantoic fluid and FTA cards

Author:
Basim Manswr; Christopher Ball; Anne Forrester; Julian Chantrey; Kannan Ganapathy
Source:
Avian pathology 2018 v.47 no.4 pp. 418-426
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; RNA; allantoic fluid; ambient temperature; birds; eggs; gene amplification; genes; genetic variation; genotype; infectious bronchitis; protocols; reverse transcriptase polymerase chain reaction; serotypes; specific pathogen-free animals; storage temperature
Abstract:
... Sequence variability in the S1 gene determines the genotype of infectious bronchitis virus (IBV) strains. A single RT-PCR assay was developed to amplify and sequence the full S1 gene for six classical and variant IBVs (M41, D274, 793B, IS/885/00, IS/1494/06 and Q1) enriched in allantoic fluid (AF) or the same AF inoculated onto Flinders Technology Association (FTA) cards. Representative strains fr ...
DOI:
10.1080/03079457.2018.1471196

23. In vitro phagocytosis of opsonized latex beads by HD11 cells as a method to assess the general opsonization potential of chicken serum

Author:
Mohammed Naghizadeh; Eva Wattrang; Rikke B. Kjærup; Maja Bakke; Sandra Shih; Tina S. Dalgaard
Source:
Avian pathology 2018 v.47 no.5 pp. 479-488
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; blood serum; chickens; disease resistance; flow cytometry; immunocompetence; immunoglobulin M; immunoglobulin Y; latex; lectins; opsonins; pathogens; phagocytosis; polystyrenes; viral load
Abstract:
... Opsonins, an important arm of the innate immune system, are various soluble proteins, which play a critical role in destruction of invading pathogens directly or via engulfment of pathogens through the intermediate of phagocytosis. The diversity of opsonin profiles is under genetic influence and may be associated with variation in disease resistance. The aim of this study was to set up an assay to ...
DOI:
10.1080/03079457.2018.1490006

24. Development of a TaqMan-based real-time PCR assay for rapid and specific detection of fowl aviadenovirus serotype 4

Author:
Jianchang Wang; Jinfeng Wang; Ping Chen; Libing Liu; Wanzhe Yuan
Source:
Avian pathology 2017 v.46 no.3 pp. 338-343
ISSN:
1465-3338
Subject:
chickens; quantitative polymerase chain reaction; hepatitis; etiological agents; serotypes; Influenza A virus; financial economics; plasmids; Avian orthoavulavirus 1; Aviadenovirus; Infectious bronchitis virus; genes; screening; Avian leukosis virus
Abstract:
... Twelve serotypes of fowl aviadenovirus, namely, FAdV-(1-8a and 8b-11), have been identified, among which FAdV-4 is the aetiologic agent of hepatitis hydropericardium syndrome (HHS) in chickens. Outbreaks of HHS have been documented in many countries, causing significant economic losses. Real-time PCR methods described so far in the literature cross-detect different serotypes of FAdVs. In this stud ...
DOI:
10.1080/03079457.2016.1278428

25. Infectious bronchitis vaccine virus detection and part-S1 genetic variation following single or dual inoculation in broiler chicks

Author:
Christopher Ball; Faez Awad; Sally Hutton; Anne Forrester; Matthew Baylis; Kannan Ganapathy
Source:
Avian pathology 2017 v.46 no.3 pp. 309-318
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; RNA; amino acids; broiler chickens; chicks; genes; genetic variation; hydrophobicity; infectious bronchitis; nucleotide sequences; reverse transcriptase polymerase chain reaction; sequence deletion; serotypes; single nucleotide polymorphism; tissues; vaccination; vaccines; viruses; Massachusetts
Abstract:
... An investigation was undertaken of the extent of genetic variation occurring within infectious bronchitis virus (IBV) vaccine strains following vaccination of day-old broiler chicks. Chicks were divided into seven groups, with two groups receiving single Massachusetts (Mass) vaccinations while the other four were inoculated with combinations of different IBV serotypes; Mass, 793B, D274 and Arkansa ...
DOI:
10.1080/03079457.2016.1268675

26. Protection of chickens vaccinated with combinations of commercial live infectious bronchitis vaccines containing Massachusetts, Dutch and QX-like serotypes against challenge with virulent infectious bronchitis viruses 793B and IS/1494/06 Israel variant 2

Author:
T. Bru; R. Vila; M. Cabana; H.J. Geerligs
Source:
Avian pathology 2017 v.46 no.1 pp. 52-58
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; chickens; cross immunity; disease control; egg production; eggs; infectious bronchitis; mortality; respiratory tract diseases; serotypes; vaccination; vaccines; virulence; virulent strains; viruses; weight gain; Israel; Massachusetts
Abstract:
... Infectious bronchitis virus (IBV) is a coronavirus which affects chickens of all ages. IBV mainly causes respiratory disease but can also result in reduced weight gain, reduced egg production, increased frequency of abnormal eggs and increased rates of mortality. Vaccination is the most important way to control the disease. Nevertheless, novel strains of infectious bronchitis (IB) continue to emer ...
DOI:
10.1080/03079457.2016.1203393

27. Selection of reference genes for gene expression analysis by real-time qPCR in avian cells infected with infectious bronchitis virus

Author:
Ambalika Batra; Helena J. Maier; Mark S. Fife
Source:
Avian pathology 2017 v.46 no.2 pp. 173-180
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; algorithms; birds; cell communication; financial economics; gene expression; genes; guidelines; infectious bronchitis; pathogenesis; poultry; poultry industry; quantitative polymerase chain reaction; respiratory tract diseases; transcription (genetics); virulent strains; viruses
Abstract:
... Infectious bronchitis virus (IBV) causes infectious bronchitis in poultry, a respiratory disease that is a source of major economic loss to the poultry industry. Detection and the study of the molecular pathogenesis of the virus often involve the use of real-time quantitative PCR assays (qPCR). To account for error within the experiments, the levels of target gene transcription are normalized to t ...
DOI:
10.1080/03079457.2016.1235258

28. Variability in biological behaviour, pathogenicity, protectotype and induction of virus neutralizing antibodies by different vaccination programmes to infectious bronchitis virus genotype Q1 strains from Chile

Author:
J. J. de Wit; R. Dijkman; P. Guerrero; J. Calvo; A. Gonzalez; H. Hidalgo
Source:
Avian pathology 2017 v.46 no.6 pp. 666-675
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; antigens; cell culture; cross immunity; egg production; eggs; financial economics; genes; genotype; genotyping; kidneys; laying hens; nephritis; nestlings; neutralization; neutralizing antibodies; pathogenicity; poultry industry; respiratory system; serotypes; vaccination; vaccines; viruses; Chile; Massachusetts
Abstract:
... In the period from July 2008 to 2010, a disease episode resulting in serious economic losses in the major production area of the Chilean poultry industry was reported. These losses were associated with respiratory problems, increase of condemnations, drops in egg production and nephritis in breeders, laying hens and broilers due to infections with infectious bronchitis virus (IBV). Twenty-five IBV ...
DOI:
10.1080/03079457.2017.1346782

29. A survey for selected avian viral pathogens in backyard chicken farms in Finland

Author:
L. Pohjola; N. Tammiranta; C. Ek-Kommonen; T. Soveri; M. L. Hänninen; M. Fredriksson Ahomaa; A. Huovilainen
Source:
Avian pathology 2017 v.46 no.2 pp. 166-172
ISSN:
1465-3338
Subject:
Newcastle disease; phylogeny; Avian orthoavulavirus 1; encephalitis; Infectious bursal disease virus; Chicken anemia virus; risk; Gallid alphaherpesvirus 1; seroprevalence; blood sampling; antibodies; farms; viruses; pathogens; flocks; infectious bronchitis; Infectious bronchitis virus; chickens; Influenza A virus; reverse transcriptase polymerase chain reaction; surveys; avian influenza; cloaca; poultry industry; Finland
Abstract:
... Backyard poultry are regaining popularity in Europe and increased interest in the health and management of non-commercial farms has resulted. Furthermore, commercial poultry farm owners have become concerned about the risk represented by contagious avian diseases that nearby backyard poultry could transmit. Fifty-one voluntary backyard chicken farms were visited between October 2012 and January 20 ...
DOI:
10.1080/03079457.2016.1232804

30. Heterologous live infectious bronchitis virus vaccination in day-old commercial broiler chicks: clinical signs, ciliary health, immune responses and protection against variant infectious bronchitis viruses

Author:
Faez Awad; Sally Hutton; Anne Forrester; Matthew Baylis; Kannan Ganapathy
Source:
Avian pathology 2016 v.45 no.2 pp. 169-177
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; antibodies; blood sampling; broiler chickens; chicks; immune response; immunohistochemistry; infectious bronchitis; mortality; vaccination; vaccines; virulence; viruses; Arkansas; Massachusetts
Abstract:
... Groups of one-day-old broiler chicks were vaccinated via the oculo-nasal route with different live infectious bronchitis virus (IBV) vaccines: Massachusetts (Mass), 793B, D274 or Arkansas (Ark). Clinical signs and gross lesions were evaluated. Five chicks from each group were humanely killed at intervals and their tracheas collected for ciliary activity assessment and for the detection of CD4+, CD ...
DOI:
10.1080/03079457.2015.1137866

31. Infectious bronchitis virus and brown shell colour: Australian strains of infectious bronchitis virus affect brown eggshell colour in commercial laying hens differently

Author:
Sami Samiullah; Juliet Roberts; Kapil Chousalkar
Source:
Avian pathology 2016 v.45 no.5 pp. 552-558
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; color; egg shell; eggs; laying hens; protoporphyrin; vaccines; virulent strains
Abstract:
... The aim of the current study was to assess any effect of wild and vaccine Australian infectious bronchitis virus (IBV) strains on shell colour in brown-shelled eggs. In Experiment 1, eggs were collected from day 1 to day 13 post-inoculation (p.i.) from unvaccinated laying hens challenged with IBV wild strains T and N1/88 and from a negative control group of hens. In Experiment 2, eggs were collect ...
DOI:
10.1080/03079457.2016.1184744

32. Combined infectious bronchitis virus Arkansas and Massachusetts serotype vaccination suppresses replication of Arkansas vaccine virus

Author:
Eunice N. Ndegwa; Samantha N. Bartlett; Haroldo Toro; Kellye S. Joiner; Vicky L. van Santen
Source:
Avian pathology 2015 v.44 no.5 pp. 408-420
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; chickens; eyes; introduced species; serotypes; tears; tissues; vaccination; vaccines; viruses; Arkansas; Massachusetts
Abstract:
... Polyvalent infectious bronchitis virus vaccination is common worldwide. The possibility of vaccine interference after simultaneous combined vaccination with Arkansas (Ark) and Massachusetts (Mass)-type vaccines was evaluated in an effort to explain the high prevalence of Ark-type infectious bronchitis virus in vaccinated chickens. Chickens ocularly vaccinated with combinations of Ark and Mass show ...
DOI:
10.1080/03079457.2015.1077928

33. Increased level of protection of respiratory tract and kidney by combining different infectious bronchitis virus vaccines against challenge with nephropathogenic Brazilian genotype subcluster 4 strains

Author:
J. J. De Wit; P. Brandao; C. A. Torres; R. Koopman; L. Y. Villarreal
Source:
Avian pathology 2015 v.44 no.5 pp. 352-357
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; birds; genotype; genotyping; kidneys; respiratory system; serotypes; vaccination; vaccines; value added; Brazil; Massachusetts
Abstract:
... Genotyping of seven infectious bronchitis virus (IBV) strains isolated in Brazil showed that all belonged to the common Brazilian genotype and that these strains were closest to the subcluster of strain IBV/Brazil/2007/USP-19. Pathotyping of four selected Brazilian strains showed that they all caused a considerable level of ciliostasis in the trachea but at a somewhat lower level than did M41 and ...
DOI:
10.1080/03079457.2015.1058916

34. Prevalence and molecular characterization of avian infectious bronchitis virus in poultry flocks in Morocco from 2010 to 2014 and first detection of Italy 02 in Africa

Author:
Siham Fellahi; Mariette Ducatez; Mehdi El Harrak; Jean-Luc Guérin; Nadia Touil; Ghizlane Sebbar; El Arbi Bouaiti; Khadija khataby; My Mustapha Ennaji; Mohammed El-Houadfi
Source:
Avian pathology 2015 v.44 no.4 pp. 287-295
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; chickens; evolution; flocks; genes; genotype; nucleotides; poultry industry; quantitative polymerase chain reaction; reverse transcriptase polymerase chain reaction; secondary immunization; vaccination; vaccines; Italy; Massachusetts; Morocco
Abstract:
... The aim of this study was to investigate the prevalence and diversity of infectious bronchitis virus (IBV) genotypes in poultry flocks in 16 areas of Morocco between 2010 and 2014. A total of 360 chicken flocks suspected of being infected by IBV were screened for the IBV N gene using real-time reverse transcriptase-polymerase chain reaction (RT-PCR). Flocks were classified into four groups accordi ...
DOI:
10.1080/03079457.2015.1044422

35. Evaluation of a novel strain of infectious bronchitis virus emerged as a result of spike gene recombination between two highly diverged parent strains

Author:
Kylie A. Hewson; Amir H. Noormohammadi; Joanne M. Devlin; Glenn F. Browning; Bridie K. Schultz; Jagoda Ignjatovic
Source:
Avian pathology 2014 v.43 no.3 pp. 249-257
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; RNA; Turkey coronavirus; chickens; genes; melting; pathogenicity; pathogens; turkeys; virulent strains
Abstract:
... The emergence of new variant strains of the poultry pathogen infectious bronchitis virus (IBV) is continually reported worldwide, owing to the labile nature of the large single-stranded RNA IBV genome. High resolution melt curve analysis previously detected a variant strain, N1/08, and the present study confirmed that this strain had emerged as a result of recombination between Australian subgroup ...
DOI:
10.1080/03079457.2014.914624

36. Factors influencing the outcome of infectious bronchitis vaccination and challenge experiments

Author:
J. J. (Sjaak) de Wit; Jane K. A. Cook
Source:
Avian pathology 2014 v.43 no.6 pp. 485-497
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; birds; infectious bronchitis; vaccination
Abstract:
... The factors influencing the outcome of infectious bronchitis vaccination and challenge experiments regarding the respiratory and renal systems are reviewed. Advantages and disadvantages of the available techniques for measuring protection against an infectious bronchitis virus challenge are discussed, including the definition of protection itself. Suggestions are made regarding some ways in which ...
DOI:
10.1080/03079457.2014.974504

37. Genotyping of infectious bronchitis viruses identified in Canada between 2000 and 2013

Author:
Emily A. K. Martin; Marina L. Brash; Sarah K. Hoyland; Jane M. Coventry; Christian Sandrock; Michele T. Guerin; Davor Ojkic
Source:
Avian pathology 2014 v.43 no.3 pp. 264-268
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; chickens; death; egg production; flocks; genes; genotype; genotyping; infectious bronchitis; monitoring; nucleotide sequences; respiratory tract diseases; slaughter; vaccination; vaccines; viruses; British Columbia; Connecticut; Massachusetts; Newfoundland and Labrador; Nova Scotia; Ontario; Pennsylvania
Abstract:
... Infectious bronchitis virus (IBV) was detected in 185 samples originating from chicken flocks of various commodity groups in Canada. Flocks with clinical signs such as respiratory challenge, sudden death, egg production problems, or nephropathogenic conditions, and randomly selected flocks sampled at slaughter as part of an Ontario broiler surveillance project, were included. Most samples were fro ...
DOI:
10.1080/03079457.2014.916395

38. Role of chicken astrovirus as a causative agent of gout in commercial broilers in India

Author:
N. R. Bulbule; K. D. Mandakhalikar; S. S. Kapgate; V. V. Deshmukh; K. A. Schat; M. M. Chawak
Source:
Avian pathology 2013 v.42 no.5 pp. 464-473
ISSN:
1465-3338
Subject:
Avian nephritis virus; Chicken astrovirus; Infectious bronchitis virus; amino acid sequences; amino acids; broiler chickens; capsid; chicks; cytopathogenicity; dwarfing; eggs; genes; gout; histopathology; kidney cells; kidneys; mixed infection; mortality; reverse transcriptase polymerase chain reaction; sequence analysis; specific pathogen-free animals; viruses; India; United Kingdom
Abstract:
... Several outbreaks of gout were reported in commercial broilers in India during 2011 and 2012, causing up to 40% mortality in the birds. Gross and histopathological observations confirmed gout. Quantitative reverse transcriptase polymerase chain reaction (qRT-PCR) analysis from kidney samples of gout-affected birds indicated the presence of chicken astrovirus (CAstV) in 41.7% of cases and a mixed i ...
DOI:
10.1080/03079457.2013.828194

39. The required sample size in vaccination-challenge experiments with infectious bronchitis virus, a meta-analysis

Author:
J. J. de Wit; G. J. Boelm; T. J. W. M. van Gerwe; W. A. J. M. Swart
Source:
Avian pathology 2013 v.42 no.1 pp. 9-16
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; adults; animal welfare; chickens; infectious bronchitis; meta-analysis; vaccination; Netherlands
Abstract:
... For statistical, animal welfare and financial reasons the choice of the number of chickens per group in experiments is important. This estimation, together with the number of tracheal organ cultures (TOCs) that need to be examined from each chicken in order to assess protection, should be based on the difference in level of protection that one would like to be able to detect (effect size), the exp ...
DOI:
10.1080/03079457.2012.751485

40. Effect of infection route and concurrent infectious bronchitis virus vaccination on Mycoplasma gallisepticum disease pathology in an experimental model

Author:
S. A. Leigh; S. L. Branton; J. D. Evans; S. D. Collier
Source:
Avian pathology 2012 v.41 no.5 pp. 497-503
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; Mycoplasma gallisepticum; agglutination; air sacs; blood serum; eyes; humoral immunity; models; pullets; specific pathogen-free animals; vaccination; vaccines
Abstract:
... The study of Mycoplasma gallisepticum (MG) infection is needed, not only to understand the disease process but also to understand the mechanisms by which MG vaccines protect the host. Many model systems have been used to study the MG disease process. This work compared two different routes of infection (intratracheal versus eye drop) in commercial pullets, looking for differences in the pathology ...
DOI:
10.1080/03079457.2012.721925

41. Effects of chicken anaemia virus and infectious bursal disease virus-induced immunodeficiency on infectious bronchitis virus replication and genotypic drift

Author:
Rodrigo A. Gallardo; Vicky L. van Santen; Haroldo Toro
Source:
Avian pathology 2012 v.41 no.5 pp. 451-458
ISSN:
1465-3338
Subject:
chickens; Chicken anemia virus; phenotype; immunosuppression; vaccines; tears; genotype; Infectious bronchitis virus; Infectious bursal disease virus; nucleotide sequences; genetic variation; virus replication; Arkansas
Abstract:
... We followed changes in a portion of the S1 gene sequence of the dominant populations of an infectious bronchitis virus (IBV) Arkansas (Ark) vaccine strain during serial passage in chickens infected with the immunosuppressive chicken anaemia virus (CAV) and/or infectious bursal disease virus (IBDV) as well as in immunocompetent chickens. The IBV-Ark vaccine was applied ocularly and tears were colle ...
DOI:
10.1080/03079457.2012.702889

42. The long view: 40 years of infectious bronchitis research

Author:
Jane K. A. Cook; M. Jackwood; R. C. Jones
Source:
Avian pathology 2012 v.41 no.3 pp. 239-250
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; chickens; infectious bronchitis; molecular biology; pathogenesis; pathogens; viruses
Abstract:
... The remit of this review is to provide the non-specialist reader of Avian Pathology with an overview of research carried out on infectious bronchitis over the 40 years since the journal was first published. In order to do this, we felt it necessary to summarize the knowledge acquired previously, since the since the disease was first identified in the 1930s. Infectious bronchitis virus is a signifi ...
DOI:
10.1080/03079457.2012.680432

43. Epidemiological survey and molecular characterization of avian infectious bronchitis virus in Brazil between 2003 and 2009

Author:
Jorge Luis Chacón; Juliana Nogueira Rodrigues; Mario Sergio Assayag Júnior; Camila Peloso; Antonio C. Pedroso; Antonio J. Piantino Ferreira
Source:
Avian pathology 2011 v.40 no.2 pp. 153-162
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; amino acids; birds; epidemiological studies; flocks; genes; genetic relationships; genetic variation; genotype; infectious bronchitis; neutralization tests; sequence analysis; serotypes; Brazil; Massachusetts
Abstract:
... As part of an epidemiological study of infectious bronchitis virus (IBV) in Brazil, 252 samples from IBV-suspect flocks were tested and the IBV-positive samples were analysed by sequencing of hypervariable regions 1 and 2 of the S1 gene. A high prevalence of IBV variants was found and the sequence analysis of 41 samples revealed a high molecular similarity among the Brazilian isolates (from 90.2 t ...
DOI:
10.1080/03079457.2010.544641

44. First full-length sequences of the S gene of European isolates reveal further diversity among turkey coronaviruses

Author:
S. Maurel; D. Toquin; F. X. Briand; M. Quéguiner; C. Allée; J. Bertin; L. Ravillion; C. Retaux; V. Turblin; H. Morvan; N. Eterradossi
Source:
Avian pathology 2011 v.40 no.2 pp. 179-189
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; RNA-directed RNA polymerase; Turkey coronavirus; amino acids; enteritis; flocks; genes; genetic variation; nucleocapsid; phylogeny; poults; reverse transcriptase polymerase chain reaction; turkeys; viruses; France; North America
Abstract:
... An increasing incidence of enteric disorders clinically suggestive of the poult enteritis complex has been observed in turkeys in France since 2003. Using a newly designed real-time reverse transcriptase-polymerase chain reaction assay specific for the nucleocapsid (N) gene of infectious bronchitis virus (IBV) and turkey coronaviruses (TCoV), coronaviruses were identified in 37% of the intestinal ...
DOI:
10.1080/03079457.2011.551936

45. In vitro and in vivo effects of Houttuynia cordata on infectious bronchitis virus

Author:
Jiechao Yin; Guangxing Li; Jing Li; Qing Yang; Xiaofeng Ren
Source:
Avian pathology 2011 v.40 no.5 pp. 491-498
ISSN:
1465-3338
Subject:
Houttuynia cordata; Infectious bronchitis virus; Oriental traditional medicine; apoptosis; chickens; infectious bronchitis; kidney cells; poultry industry; reverse transcriptase polymerase chain reaction; specific pathogen-free animals; China
Abstract:
... Avian infectious bronchitis virus (IBV), a coronavirus, causes infectious bronchitis leading to enormous economic loss in the poultry industry worldwide. Houttuynia cordata (Saururaceae) (HC) is a traditional Chinese medicine used in China. In the present study, the effect of HC on cell infection by IBV was determined using plaque assay and reverse transcription-polymerase chain reaction. The inhi ...
DOI:
10.1080/03079457.2011.605107

46. Induction of cystic oviducts and protection against early challenge with infectious bronchitis virus serotype D388 (genotype QX) by maternally derived antibodies and by early vaccination

Author:
J. J. de Wit; J. Nieuwenhuisen-van Wilgen; A. Hoogkamer; H. van de Sande; G. J. Zuidam; T. H. F. Fabri
Source:
Avian pathology 2011 v.40 no.5 pp. 463-471
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; air sacs; antibodies; antigens; broiler breeders; distress; genotype; infectious bronchitis; kidneys; live vaccines; mortality; nephritis; oviducts; pathogenesis; poultry industry; serotypes; specific pathogen-free animals; vaccination; virulent strains
Abstract:
... Since the end of 2003, strains of the D388 serotype (QX genotype) of infectious bronchitis virus (IBV) have caused considerable damage to the Dutch poultry industry. In order to better understand the pathogenesis of infection caused by this infectious bronchitis variant and to be able to support the poultry industry with substantiated advice to prevent or decrease the damage caused by the D388 str ...
DOI:
10.1080/03079457.2011.599060

47. Molecular characterization of infectious bronchitis virus isolates from Russia and neighbouring countries: identification of intertypic recombination in the S1 gene

Author:
Evgeniya V. Ovchinnikova; Yury A. Bochkov; Lidiya O. Shcherbakova; Zoya B. Nikonova; Nikolay G. Zinyakov; Nikolay P. Elatkin; Nataliya S. Mudrak; Alexander V. Borisov; Vladimir V. Drygin
Source:
Avian pathology 2011 v.40 no.5 pp. 507-514
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; chickens; flocks; genes; genotype; nucleotide sequences; vaccines; Arkansas; Kazakhstan; Massachusetts; Russia; Ukraine
Abstract:
... Infectious bronchitis virus (IBV) isolates recovered in Russia, Ukraine, and Kazakhstan between 2007 and 2010 were subjected to molecular characterization and compared with those isolated a decade ago. The IBV genome was detected in 202 out of 605 field samples from chickens with various clinical signs. Partial sequencing of the S1 gene revealed 153 vaccine strains and 49 field isolates of several ...
DOI:
10.1080/03079457.2011.605782

48. Phylogenetic analysis of infectious bronchitis coronaviruses newly isolated in China, and pathogenicity and evaluation of protection induced by Massachusetts serotype H120 vaccine against QX-like strains

Author:
Chuyang Sun; Zongxi Han; Huijie Ma; Qinxia Zhang; Baolong Yan; Yuhao Shao; Jia Xu; Xiangang Kong; Shengwang Liu
Source:
Avian pathology 2011 v.40 no.1 pp. 43-54
ISSN:
1465-3338
Subject:
Infectious bronchitis virus; chickens; genes; genetic variation; genotype; infectious bronchitis; kidneys; phylogeny; serotypes; specific pathogen-free animals; vaccines; virulence; viruses; China; Massachusetts
Abstract:
... Seventy-eight isolates of avian infectious bronchitis virus (IBV) were obtained from different field outbreaks in China in 2009 and genotyped with 34 reference strains. Four genotypes of IBV and three new isolates were identified by phylogenetic analysis and BLAST searches of the entire S1 gene. The results showed that most IBV strains that have circulated in China in recent years belong to the ge ...
DOI:
10.1080/03079457.2010.538037

49. Efficacy of infectious bronchitis virus vaccinations in the field: association between the -IBV IgM response, protection and vaccine application parameters

Author:
Wit, J.J. de; Swart, W.A.J.M.; Fabri, T.H.F.
Source:
Avian pathology 2010 v.39 no.2 pp. 123-131
ISSN:
0307-9457
Subject:
immunoglobulin M; intranasal administration; laying hens; broiler breeders; disease prevention; application methods; field experimentation; vaccination; animal age; poultry housing; enzyme-linked immunosorbent assay; water temperature; temporal variation; vertebrate viruses; flocks; air temperature; infectious bronchitis; Infectious bronchitis virus; immune response; photoperiod; dosage; air flow; Netherlands
Abstract:
... Infectious bronchitis virus (IBV) is, in spite of vaccination, still a major cause of respiratory problems in broilers and of poor egg production in breeders and layers in many parts of the world. A possible cause of the insufficient protection induced by vaccination is an inadequate application of the vaccine. This paper reports the results of two field studies. In the first, the results of the - ...
DOI:
10.1080/03079451003604639

50. Induction of eggshell apex abnormalities in broiler breeder hens

Author:
Feberwee, A.; Landman, W.J.M.
Source:
Avian pathology 2010 v.39 no.2 pp. 133-137
ISSN:
0307-9457
Subject:
broiler breeders; laying hens; egg shell quality; egg shell; Mycoplasma synoviae; animal pathogenic bacteria; mycoplasmosis; specific pathogen-free animals; genotype; genetic variation; disease resistance; genetic resistance; Infectious bronchitis virus; vertebrate viruses; infectious bronchitis; mixed infection; fecundity; egg production; egg hatchability; strain differences
Abstract:
... Recently, the causal relationship between eggshell apex abnormalities (EAA) and Mycoplasma synoviae was described. This eggshell pathology has only been documented in table egg layers both spontaneously and experimentally infected with M. synoviae, suggesting that meat-type layers are less prone to this condition. In this study the susceptibility of specified pathogen free (SPF) broiler breeder he ...
DOI:
10.1080/03079451003657637
PubMed:
20390548

51. Rapid heat-treatment attenuation of infectious bronchitis virus

Author:
Jackwood, Mark W.; Hilt, Deborah A.; Sellers, Holly S.; Willliams, Susan M.; Lasher, Hiram N.
Source:
Avian pathology 2010 v.39 no.3 pp. 227-233
ISSN:
0307-9457
Subject:
broiler chickens; specific pathogen-free animals; ova; serotypes; live vaccines; infectious bronchitis; embryo (animal); rapid methods; Infectious bronchitis virus; immune response; vaccination; vaccine development; heat treatment; chicks; protective effect
Abstract:
... In the present study we describe the rapid development of an attenuated live vaccine for GA08, a new serotype of infectious bronchitis virus, using a heat-treatment method. Incubation of the GA08 strain of IBV at 56°C and passage in embryonated eggs was used as a method to fast track the attenuation process. The virus was incubated in a 56°C water bath and aliquots were removed every 5 min for up ...
DOI:
10.1080/03079451003801516
PubMed:
20544430

52. Comparative analysis of the effect of glycyrrhizin diammonium and lithium chloride on infectious bronchitis virus infection in vitro

Author:
Li, Jing; Yin, Jiechao; Sui, Xiuwen; Li, Guangxing; Ren, Xiaofeng
Source:
Avian pathology 2009 v.38 no.3 pp. 215-221
ISSN:
0307-9457
Subject:
chickens; antiviral properties; kidney cells; assays; viral diseases of animals and humans; glycyrrhizin; reverse transcriptase polymerase chain reaction; embryo (animal); Infectious bronchitis virus; in vitro studies; lithium chloride; apoptosis; infection
Abstract:
... The effects of glycyrrhizin diammonium (GD) and lithium chloride (LiCl) on cell infection by avian infectious bronchitis virus (IBV) were investigated using cytopathic effect observation, plaque-reduction assay and reverse transcriptase-polymerase chain reaction. The anti-viral effect of GD and LiCl on virus, on virus-infected cells or on cells pre-treated by both drugs was analysed, respectively. ...
DOI:
10.1080/03079450902912184
PubMed:
19468938

53. Comparative analysis of the sialic acid binding activity and the tropism for the respiratory epithelium of four different strains of avian infectious bronchitis virus

Author:
Abd El Rahman, S.; El-Kenawy, A.A.; Neumann, U.; Herrler, G.; Winter, C.
Source:
Avian pathology 2009 v.38 no.1 pp. 41-45
ISSN:
0307-9457
Subject:
chickens; sialic acids; kidney cells; cell culture; epithelial cells; strain differences; infectious bronchitis; receptors; epithelium; tissue tropism; pathogenicity; Infectious bronchitis virus; trachea (vertebrates); in vitro studies; pathogenesis; pathotypes; binding capacity
Abstract:
... Avian infectious bronchitis virus (IBV) is a major pathogen in commercial poultry flocks. We recently demonstrated that sialic acid serves as a receptor determinant for IBV on the tracheal epithelium. Here we compared the IBV strains Beaudette, 4/91, Italy02, and QX for their sialic acid-binding properties. We demonstrate that sialic acid binding is important for the infection of primary chicken k ...
DOI:
10.1080/03079450802632049
PubMed:
19156578

54. Comparison of the pathogenicity of QX-like, M41 and 793/B infectious bronchitis strains from different pathological conditions

Author:
Benyeda, Zsofia; Mato, Tamas; Suveges,Tibor; Szabo, Eva; Kardi, Veronika; Abonyi-Toth, Zsolt; Rusvai, Miklos; Palya, Vilmos
Source:
Avian pathology 2009 v.38 no.6 pp. 449-456
ISSN:
0307-9457
Subject:
chickens; specific pathogen-free animals; Infectious bronchitis virus; vertebrate viruses; infectious bronchitis; pathogenicity; strain differences; disease outbreaks; serotypes; food animals; animal tissues; humoral immunity; immune response; oviducts; kidneys; virus replication; histopathology
Abstract:
... Five QX-like infectious bronchitis virus (IBV) strains, isolated from different field outbreaks and two reference IBV strains of known serotypes (M41 and 793/B), were used in the present study to investigate and compare their pathogenicity for 1-day-old specific pathogen free chickens. The ability of the strains to inhibit trachea epithelium ciliary activity, to induce immune response, to replicat ...
DOI:
10.1080/03079450903349196
PubMed:
19937534

55. Effect of a live Mycoplasma synoviae vaccine on the production of eggshell apex abnormalities induced by a M. synoviae infection preceded by an infection with infectious bronchitis virus D1466

Author:
Feberwee, A.; Morrow, C.J.; Ghorashi, S.A.; Noormohammadi, A.H.; Landman, W.J.M.
Source:
Avian pathology 2009 v.38 no.5 pp. 333-340
ISSN:
0307-9457
Subject:
laying hens; poultry diseases; Mycoplasma synoviae; live vaccines; Infectious bronchitis virus; abnormal development; nucleotide sequences; microbial genetics; egg shell; egg production; egg shell quality
Abstract:
... An experimental study was conducted to assess the effect of a live Mycoplasma synoviae vaccine (Vaxsafe MS; Bioproperties Pty Ltd, Ringwood, Victoria, Australia) on M. synoviae-induced eggshell apex abnormalities (EAA). Four experimental groups of specified-pathogen-free white laying hens were made. All groups were inoculated with infectious bronchitis virus D1466 at 18 weeks of age. One group did ...
DOI:
10.1080/03079450903183652
PubMed:
19937520

56. Induction of eggshell apex abnormalities by Mycoplasma synoviae: field and experimental studies. [Erratum: 2009 Apr., v. 38, no. 2, p. 187.]

Author:
Feberwee, A.; Wit, J.J. de; Landman, W.J.M.
Source:
Avian pathology 2009 v.38 no.1 pp. 77-85
ISSN:
0307-9457
Subject:
egg shell; etiology; histopathology; laying hens; oviducts; emerging diseases; poultry diseases; egg shell thickness; mycoplasmosis; disease transmission; Infectious bronchitis virus; abnormal development; egg production; pathogenesis; eggs; Mycoplasma synoviae; signs and symptoms (animals and humans); Netherlands
Abstract:
... A novel eggshell pathology, characterized by an altered shell surface, thinning, increased translucency, and cracks and breaks in the eggshell apex, has become increasingly common in layer flocks of various breeds in The Netherlands. Two field studies found an association between the eggshell apex abnormalities (EAA) and infection with Mycoplasma synoviae. M. synoviae was isolated from the oviduct ...
DOI:
10.1080/03079450802662772

57. Molecular characterization of avian infectious bronchitis virus strains from outbreaks in Argentina (2001-2008)

Author:
Rimondi, Agustina; Craig, Maria Isabel; Vagnozzi, Ariel; Konig, Guido; Delamer, Mateo; Pereda, Ariel
Source:
Avian pathology 2009 v.38 no.2 pp. 149-153
ISSN:
0307-9457
Subject:
broiler chickens; vertebrate viruses; laying hens; serotypes; geographical variation; vaccines; strain differences; infectious bronchitis; phylogeny; amino acid sequences; disease outbreaks; molecular systematics; Infectious bronchitis virus; nucleotide sequences; genetic variation; microbial genetics; signs and symptoms (animals and humans); Argentina
Abstract:
... Twenty infectious bronchitis virus isolates were recovered from broilers and layers in different outbreaks amongst commercial poultry flocks in different geographic regions of Argentina from 2001 to 2008. The viruses were isolated from the tracheas, lungs, and caecal tonsils of birds that were showing respiratory signs. Further analysis based on their nucleotide and amino acid sequences in hyperva ...
DOI:
10.1080/03079450902737821
PubMed:
19322714

58. Pathogenicity of a QX strain of infectious bronchitis virus in specific pathogen free and commercial broiler chickens, and evaluation of protection induced by a vaccination programme based on the Ma5 and 4/91 serotypes

Author:
Terregino, Calogero; Toffan, Anna; Beato, Maria Serena; De Nardi, Roberta; Vascellari, Marta; Meini, Amelio; Ortali, Giovanni; Mancin, Marzia; Capua, Ilaria
Source:
Avian pathology 2008 v.37 no.5 pp. 487-493
ISSN:
0307-9457
Subject:
broiler chickens; specific pathogen-free animals; disease prevention; serotypes; live vaccines; infectious bronchitis; signs and symptoms (animals and humans); disease severity; respiratory system; pathogenicity; Infectious bronchitis virus; immune response; vaccination; pathogenesis; disease course; protective effect; Italy
Abstract:
... The aims of this study were firstly to evaluate the pathogenicity of an Italian isolate of the QX strain of infectious bronchitis (IB) virus using 1-day-old female specific pathogen free chicks (layer type) and 1-day-old female commercial broiler type chickens, and secondly to assess the level of protection induced in these birds by a vaccination programme including the IB Massachusetts and 4/91 s ...
DOI:
10.1080/03079450802356938

59. Rapid selection in chickens of subpopulations within ArkDPI-derived infectious bronchitis virus vaccines

Author:
Van Santen, V.L.; Toro, H.
Source:
Avian pathology 2008 v.37 no.3 pp. 293-306
ISSN:
0307-9457
Subject:
vaccines; chickens; microbial genetics; nucleotide sequences; specific pathogen-free animals; Infectious bronchitis virus; infectious bronchitis; disease prevention; vaccination; disease prevalence; amino acid sequences; application methods; serotypes
Abstract:
... We examined spike (S) gene sequences of the virus populations of four different commercial ArkDPI-derived infectious bronchitis coronavirus vaccines before and during a single passage in specific pathogen free chickens. We found different degrees of genetic heterogeneity among the four vaccines before passage in chickens, ranging from no apparent heterogeneity to heterogeneity in 20 positions in t ...
DOI:
10.1080/03079450802043783
PubMed:
18568656

60. A reverse transcriptase-polymerase chain reaction survey of infectious bronchitis virus genotypes in Western Europe from 2002 to 2006

Author:
Worthington, K.J.; Currie, R.J.W.; Jones, R.C.
Source:
Avian pathology 2008 v.37 no.3 pp. 247-257
ISSN:
0307-9457
Subject:
reverse transcriptase polymerase chain reaction; genotype; Infectious bronchitis virus; infectious bronchitis; epidemiological studies; microbial genetics; poultry; flocks; genes; nucleotide sequences; strains; disease detection; live vaccines; disease prevalence; Western European region
Abstract:
... A survey of infectious bronchitis virus (IBV) genotypes in poultry flocks in selected countries in Western Europe was carried out between March 2002 and December 2006. Identification of IBV was by reverse transcriptase-polymerase chain reaction of RNA extracted from oropharyngeal swabs taken from poultry flocks exhibiting signs of clinical disease thought to be attributable to IBV. Part of the hyp ...
DOI:
10.1080/03079450801986529
PubMed:
18568650

61. Infection of HeLa cells by avian infectious bronchitis virus is dependent on cell status

Author:
Chen, H.Y.; Guo, A.Z.; Peng, B.; Zhang, M.F.; Guo, H.Y.; Chen, H.C.
Source:
Avian pathology 2007 v.36 no.4 pp. 269-274
ISSN:
0307-9457
Subject:
membrane alanyl aminopeptidase; zoonoses; sialic acids; glycosylation; strain differences; receptors; amino acid sequences; cytopathogenicity; Infectious bronchitis virus; hemagglutinins; viral proteins; cell lines; virus replication
DOI:
10.1080/03079450701447291
PubMed:
17620171

62. Lithium chloride inhibits the coronavirus infectious bronchitis virus in cell culture

Author:
Harrison, S.M.; Tarpey, I.; Rothwell, L.; Kaiser, P.; Hiscox, J.A.
Source:
Avian pathology 2007 v.36 no.2 pp. 109-114
ISSN:
0307-9457
Subject:
chickens; protein synthesis; antiviral properties; dose response; antiviral agents; strain differences; infectious bronchitis; live vaccines; vaccination; dosage; Infectious bronchitis virus; virus replication; in vitro studies; lithium chloride; cell lines; RNA; microbial genetics; mortality
Abstract:
... The avian coronavirus infectious bronchitis virus (IBV) is a major economic pathogen of domestic poultry that, despite vaccination, causes mortality and significant losses in production. During replication of the RNA genome there is a high frequency of mutation and recombination, which has given rise to many strains of IBV and results in the potential for new and emerging strains. Currently the li ...
DOI:
10.1080/03079450601156083
PubMed:
17479370

63. S1 gene sequence heterogeneity of a pathogenic infectious bronchitis virus strain and its embryo-passaged, attenuated derivatives

Author:
Liu, S.; Han, Z.; Chen, J.; Liu, X.; Shao, Y.; Kong, X.; Tong, G.; Rong, J.
Source:
Avian pathology 2007 v.36 no.3 pp. 231-234
ISSN:
0307-9457
Subject:
chickens; sequence analysis; in vivo studies; specific pathogen-free animals; microbial genetics; mutagenesis; strain differences; infectious bronchitis; embryo (animal); amino acid sequences; vaccination; Infectious bronchitis virus; molecular epidemiology; nucleotide sequences; immune response; genetic recombination; virulence; protective effect
DOI:
10.1080/03079450701338730
PubMed:
17497337

64. Sequence changes of infectious bronchitis virus isolates in the 3' 7.3 kb of the genome after attenuating passage in embryonated eggs

Author:
Huang, Y.P.; Wang, C.H.
Source:
Avian pathology 2007 v.36 no.1 pp. 59-67
ISSN:
0307-9457
Subject:
vertebrate viruses; strain differences; live vaccines; virulence; reverse transcriptase polymerase chain reaction; amino acid sequences; genes; nucleotide sequences; Infectious bronchitis virus; microbial genetics; nucleocapsid proteins
Abstract:
... Attenuated infectious bronchitis virus (IBV) vaccines are available but the relationship between sequence and virulence is not clear. In this study, the sequences of the 3' 7.3 kb of the genome, amplified using reverse transcription-polymerase chain reaction before and after attenuation, were compared to study the relationship between virulence and the sequences of three IBV strains. After attenua ...
DOI:
10.1080/03079450601110015
PubMed:
17364511

65. Antigenic and molecular characterization of isolates of the Italy 02 infectious bronchitis virus genotype

Author:
Dolz, R.; Pujols, J.; Ordonez, G.; Porta, R.; Majo, N.
Source:
Avian pathology 2006 v.35 no.2 pp. 77-85
ISSN:
0307-9457
Subject:
chickens; epidemiology; neutralization tests; serotypes; strain differences; infectious bronchitis; phylogeny; amino acid sequences; viral proteins; genotype; Infectious bronchitis virus; nucleotide sequences; viral antigens; antigenic variation; microbial genetics; glycoproteins; genetic recombination; Spain
Abstract:
... As part of an epidemiological surveillance of infectious bronchitis virus (IBV) in Spain, four Spanish field isolates showed high S1 spike sequence similarities with an IBV sequence from the GenBank database named Italy 02. Given that little was known about this new emergent IBV strain we have characterized the four isolates by sequencing the entire S1 part of the spike protein gene and have compa ...
DOI:
10.1080/03079450600597295
PubMed:
16595297

66. Epidemiological and experimental evidence for immunodeficiency affecting avian infectious bronchitis

Author:
Toro, H.; Van Santen, V.L.; Li, L.; Lockaby, S.B.; Van Santen, E.; Hoerr, F.J.
Source:
Avian pathology 2006 v.35 no.6 pp. 455-464
ISSN:
0307-9457
Subject:
chickens; protective effect; Chicken anemia virus; viral diseases of animals and humans; immunosuppression; thymus gland; atrophy; poultry diseases; vaccination; pathogenicity; Infectious bronchitis virus; disease resistance; Infectious bursal disease virus; strains; mixed infection; microbial genetics; disease course; bronchitis
DOI:
10.1080/03079450601028811
PubMed:
17121734

67. Infectious bronchitis virus S1 gene sequence comparison is a better predictor of challenge of immunity in chickens than serotyping by virus neutralization

Author:
Ladman, B.S.; Loupos, A.B.; Gelb, J. Jr.
Source:
Avian pathology 2006 v.35 no.2 pp. 127-133
ISSN:
0307-9457
Subject:
chickens; neutralization tests; serotypes; vaccines; strain differences; infectious bronchitis; virulence; amino acid sequences; cross immunity; nucleotide sequences; Infectious bronchitis virus; immune response; antigenic variation; microbial genetics
Abstract:
... Five strains of infectious bronchitis virus isolated from commercial chickens from the state of Pennsylvania, USA during the years 1998 and 1999 were studied. The strains were selected for cross-challenge in specific pathogen free chickens and virus neutralization in chick embryos on the basis of partial S1 sequence amino acid identity values. The partial sequences analysed spanned the hypervariab ...
DOI:
10.1080/03079450600597865
PubMed:
16595305

68. Infectious bronchitis virus: S1 gene characteristics of vaccines used in China and efficacy of vaccination against heterologous strains from China

Author:
Liu, S.; Chen, J.; Han, Z.; Zhang, Q.; Shao, Y.; Kong, X.; Tong, G.
Source:
Avian pathology 2006 v.35 no.5 pp. 394-399
ISSN:
0307-9457
Subject:
chickens; sequence analysis; viral diseases of animals and humans; vaccines; poultry diseases; strain differences; cross immunity; phylogeny; amino acid sequences; Infectious bronchitis virus; nucleotide sequences; vaccination; microbial genetics; China
Abstract:
... The entire S1 protein genes of eight infectious bronchitis (IB) vaccine strains used in China were compared with those of the IB virus isolates present in the field in China. The nucleotide and amino acid similarities between the eight IB vaccine strains and the field strain, tl/CH/LDT3/03, which was isolated from a teal (Anas sp.), were not more than 81.1% and 79.2%, respectively. Phylogenetic an ...
DOI:
10.1080/03079450600920984
PubMed:
16990149

69. Molecular epizootiology of avian infectious bronchitis in Russia

Author:
Bochkov, Y.A.; Batchenko, G.V.; Shcherbakova, L.O.; Borisov, A.V.; Drygin, V.V.
Source:
Avian pathology 2006 v.35 no.5 pp. 379-393
ISSN:
0307-9457
Subject:
poultry diseases; molecular biology; Infectious bronchitis virus; chickens; serotypes; toxigenic strains; viral diseases of animals and humans; phylogeny; microbial genetics; sequence analysis; nucleotide sequences; host range; genotype; strain differences; Russia
Abstract:
... Molecular characterization of infectious bronchitis viruses (IBVs) isolated between 1998 and 2002 from chickens in Russia was performed. More than 250 field samples were tested by reverse transcriptase-polymerase chain reaction using two sets of primers corresponding to the most conserved 3'-untranslated region and the most variable S1 gene region of the viral genome. Ninety-one IBV isolates were ...
DOI:
10.1080/03079450600921008
PubMed:
16990148

70. Typing infectious bronchitis virus strains using reverse transcription-polymerase chain reaction and restriction fragment length polymorphism analysis to compare the 3' 7.5 kb of their genomes

Author:
Mardani, K.; Noormohammadi, A.H.; Ignatovic, J.; Browning, G.F.
Source:
Avian pathology 2006 v.35 no.1 pp. 63-69
ISSN:
0307-9457
Subject:
chickens; restriction fragment length polymorphism; epidemiology; serotypes; strain differences; infectious bronchitis; reverse transcriptase polymerase chain reaction; pathogen identification; viral proteins; genes; Infectious bronchitis virus; microbial genetics
Abstract:
... Typing infectious bronchitis virus (IBV) strains is useful for implementation of control measures and for understanding the epidemiology and evolution of IBV. The aim of the work reported here was to develop a rapid and sensitive method for typing isolates of IBV, if possible directly from tissues of infected birds. A procedure was developed for differentiation of IBV strains by restriction endonu ...
DOI:
10.1080/03079450500465817
PubMed:
16448945

71. S1 gene charcteristics and efficacy of vaccination against infectious bronchitis virus field isolates from the United States and Israel (1996 to 2000)

Author:
Gelb, J. Jr.; Weisman, Y.; Ladman, B.S.; Meir, R.
Source:
Avian pathology 2005 v.34 no.3 pp. 194-203
ISSN:
0307-9457
Subject:
chickens; restriction fragment length polymorphism; vaccines; strain differences; infectious bronchitis; disease control; reverse transcriptase polymerase chain reaction; phylogeny; viral proteins; Infectious bronchitis virus; nucleotide sequences; vaccination; clinical trials; microbial genetics; United States; Israel
Abstract:
... The S1 genes of isolates of avian coronavirus infectious bronchitis virus (IBV) from commercial chickens in the US and Israel (20 isolates from each country) were studied using reverse transcription-polymerase chain reaction restriction fragment length polymorphism and sequencing. Partial sequences spanning the amino terminus region of S1 from amino acid residues 48 to 219, based on the Beaudette ...
DOI:
10.1080/03079450500096539

72. Variation in the spike protein of the 793/B type of infectious bronchitis virus, in the field and during alternate passage in chickens and embryonated eggs

Author:
Cavanagh, D.; Picault, J.P.; Grough, R.E.; Hess, M.; Mawditt, K.; Britton, P.
Source:
Avian pathology 2005 v.34 no.1 pp. 20-25
ISSN:
0307-9457
Subject:
chickens; serotypes; vaccines; hosts; strain differences; infectious bronchitis; amino acid sequences; viral proteins; Infectious bronchitis virus; nucleotide sequences; natural selection; eggs
DOI:
10.1080/03079450400025414
PubMed:
15763735

73. A comparison of methods of inducing lachrymation and tear collection in chickens for detection of virus-specific immuoglobulins after infection with infectious bronchitis virus

Author:
Ganapathy, K.; Cargill, P.W.; Jones, R.C.
Source:
Avian pathology 2005 v.34 no.3 pp. 248-251
ISSN:
0307-9457
Subject:
chicks; tears; secretion; laboratory techniques; disease detection; immunoglobulin A; Infectious bronchitis virus; infectious bronchitis; specific pathogen-free animals; strains; carbachol; eyes; sodium chloride; immunoglobulin G; measurement
Abstract:
... Four-week-old specific-pathogen-free chickens were infected with virulent infectious bronchitis virus Massachusetts strain M41 via the ocular-nasal route. At weekly intervals up to 3 weeks post-infection, excess lachrymation was induced either by placing sodium chloride (salt) crystals on the eyes or by intramuscular injection of carbachol. Tears were collected using micropipettes or on filter pap ...
DOI:
10.1080/03079450500112344
PubMed:
16191709

74. Aerosol-induced Mycoplasma synoviae arthritis: the synergistic effect of infectious bronchitis virus infection

Author:
Landman, W.J.M.; Feberwee, A.
Source:
Avian pathology 2004 v.33 no.6 pp. 591-598
ISSN:
0307-9457
Subject:
lesions (animal); intravenous injection; host-pathogen relationships; aerosols; arthritis; mycoplasmosis; infectious bronchitis; mixed infection; pullets; disease transmission; Infectious bronchitis virus; strains; chicks; Mycoplasma synoviae; disease incidence
DOI:
10.1080/03079450400013170
PubMed:
15763728

75. Development and use of the H strain of avian infectious bronchitis virus from the Netherlands as a vaccine: a review

Author:
Bijlenga, G.; Cook, J.K.A.; Gelb, J. Jr.; Wit, J.J. de
Source:
Avian pathology 2004 v.33 no.6 pp. 550-557
ISSN:
0307-9457
Subject:
chicks; Infectious bronchitis virus; infectious bronchitis; serotypes; live vaccines; vaccine development; vaccination; cross immunity; Netherlands
DOI:
10.1080/03079450400013154
PubMed:
15763721

76. Egg:embryo weight ratio as an indicator of dwarfism induced by infectious bronchitis virus

Author:
Raj, G.D.; Kumar, K.S.; Nainar, A.M.; Nachimuthu, K.
Source:
Avian pathology 2004 v.33 no.3 pp. 307-309
ISSN:
0307-9457
Subject:
dwarfing; chickens; eggs; embryo (animal); Infectious bronchitis virus; infectious bronchitis; egg weight; tissue weight; neutralization tests; titration
Abstract:
... A simple objective method to quantify embryo dwarfism induced by infectious bronchitis virus in embryonated chicken eggs has been used to determine endpoints in virus titration and neutralization assays. The eggs and the respective embryos were weighed and embryo:egg weight (EE) ratios were calculated. The EE ratios were compared with the uninoculated control eggs and endpoints could be calculated ...
DOI:
10.1080/0307945042000205883
PubMed:
15223558

77. Microwave or autoclave treatments destroy the infectivity of infectious bronchitis virus and avian pneumovirus but allow detection by reverse transcriptase-polymerase chain reaction

Author:
Elhafi, G.; Naylor, C.J.; Savage, C.E.; Jones, R.C.
Source:
Avian pathology 2004 v.33 no.3 pp. 303-306
ISSN:
0307-9457
Subject:
vertebrate viruses; disease detection; diagnostic techniques; viral diseases of animals and humans; Influenza A virus; Avian metapneumovirus; poultry diseases; reverse transcriptase polymerase chain reaction; pathogen identification; Avian orthoavulavirus 1; pathogenicity; Infectious bronchitis virus; disinfection; trachea (vertebrates); microwave treatment; cloaca; chicks; autoclaving
Abstract:
... A method is described for enabling safe transit of denatured virus samples for polymerase chain reaction (PCR) identification without the risk of unwanted viable viruses. Cotton swabs dipped in avian infectious bronchitis virus (IBV) or avian pneumovirus (APV) were allowed to dry. Newcastle disease virus and avian influenza viruses were used as controls. Autoclaving and microwave treatment for as ...
DOI:
10.1080/0307945042000205874
PubMed:
15223557

78. Significance of interactions between Escherichia coli and respiratory pathogens in layer hen flocks suffering from colibacillosis-associated mortality

Author:
Vandekerchove, D.; Herdt, P. de.; Laevens, H.; Butaye, P.; Meulemans, G.; Pasmans, F.
Source:
Avian pathology 2004 v.33 no.3 pp. 298-302
ISSN:
0307-9457
Subject:
vertebrate viruses; seroprevalence; laying hens; septicemia; respiratory tract diseases; Avian metapneumovirus; poultry diseases; animal pathogenic bacteria; Ornithobacterium rhinotracheale; disease outbreaks; Avian orthoavulavirus 1; Infectious bronchitis virus; Mycoplasma gallisepticum; Mycoplasma synoviae; mixed infection; Escherichia infections; mortality; Escherichia coli
Abstract:
... This study aimed to examine the significance of interactions between Escherichia coli and various respiratory pathogens during outbreaks of colibacillosis-associated mortality in layer hen flocks under field conditions. For this purpose, a case-control study involving 20 control flocks with baseline mortality and 20 flocks with increased mortality due to E. coli septicaemia and polyserositis, was ...
DOI:
10.1080/030794504200020399
PubMed:
15223556

79. A new genotype of nephropathogenic infectious bronchitis virus circulating in vaccinated and non-vaccinated flocks in China

Author:
Liu, S.; Kong, X.
Source:
Avian pathology 2004 v.33 no.3 pp. 321-327
ISSN:
0307-9457
Subject:
vertebrate viruses; laying hens; viral diseases of animals and humans; complementary DNA; poultry diseases; strain differences; reverse transcriptase polymerase chain reaction; amino acid sequences; embryo (animal); viral proteins; genotype; Infectious bronchitis virus; nucleotide sequences; vaccination; kidney diseases; eggs; China
Abstract:
... Five strains of infectious bronchitis virus (IBV) were isolated from five layer flocks that had nephropathogenic infection in four provinces in China. Among them, three of the five flocks had been vaccinated against infectious bronchitis. Virulence studies indicated that the five Chinese IBV isolates caused 10 to 30% mortality in 15-day-old specific pathogen free chickens and gross lesions were ma ...
DOI:
10.1080/0307945042000220697
PubMed:
15223561

80. Ability of Massachusetts-type infectious bronchitis virus to increase colibacillosis susceptibility in commercial broilers: a comparison between vaccine and virulent field virus

Author:
Matthijs, M.G.R.; van Eck, J.H.H.; Landman, W.J.M.; Stegeman, J.A.
Source:
Avian pathology 2003 v.32 no.5 pp. 473-481
ISSN:
0307-9457
Subject:
broiler chickens; Escherichia coli; vaccines; body weight; mortality; Infectious bronchitis virus
Abstract:
... The abilities of Massachusetts-type vaccine virus and virulent infectious bronchitis (IB) field virus to increase colibacillosis susceptibility were compared. In four experiments, 29-day-old female commercial broilers housed in isolators, were infected intratracheally and oculonasally with IB vaccine strains (H120 and H52) or virulent IB field strains (D387 and M41) (4.8 or 6.8 log10 median embryo ...
DOI:
10.1080/0307945031000154062
PubMed:
14522702

81. Evaluation of a nucleoprotein-based enzyme-linked immunosorbent assay for the detection of antibodies against infectious bronchitis virus

Author:
Chen, H.Y.; Coote, B.; Attree, S.; Hiscox, J.A.
Source:
Avian pathology 2003 v.32 no.5 pp. 519-526
ISSN:
0307-9457
Subject:
poultry; Infectious bronchitis virus; enzyme-linked immunosorbent assay; antibody detection
Abstract:
... As an immunogen of the coronavirus, the nucleoprotein (N) is a potential antigen for the serological monitoring of infectious bronchitis virus (IBV). In this report, recombinant N protein from the Beaudette strain of IBV was produced and purified from Escherichia coli as well as Sf9 (insect) cells, and used for the coating of enzyme-linked immunosorbent assay (ELISA) plates. The N protein produced ...
DOI:
10.1080/0307945031000154125
PubMed:
14522708

82. Infectious bronchitis virus replication in the chicken embryo related cell line

Author:
Ferreira, Helena L.; Pilz, Daniela; Mesquita, Ligia G.; Cardoso, Tereza
Source:
Avian pathology 2003 v.32 no.4 pp. 413-417
ISSN:
0307-9457
Subject:
Infectious bronchitis virus; RNA; cell fusion; chicken eggs; chickens; cytopathogenicity; electron microscopy; fluorescence; fluorescent antibody technique; kidney cells; reverse transcriptase polymerase chain reaction; titration; virus replication; viruses
Abstract:
... The susceptibility of the chicken embryo related (CER) cell line to infectious bronchitis virus (IBV M41) was characterized after five consecutive passages in CER cells. Virus replication was monitored by cytopathic effect observation, electron microscopy, indirect immunofluorescence, and reverse transcription polymerase chain reaction (RT-PCR). At 96 h post-infection (p.i.), the cytopathic effect ...
DOI:
10.1080/0307945031000121167

83. Detection and estimation of avian infectious bronchitis virus antigen by a novel indirect liquid-phase blocking enzyme-linked immunosorbent assay using chicken and rabbit affinity purified immunoglobulins

Author:
Lougovskaia, N.N.; Lougovskoi, A.A.; Bochkov, Y.A.; Batchenko, G.V.; Mudrak, N.S.; Drygin, V.V.; Borisov, A.V.; Borisov, V.V.; Gusev, A.A.
Source:
Avian pathology 2002 v.31 no.6 pp. 549-557
ISSN:
0307-9457
Subject:
chickens; Infectious bronchitis virus; immunoglobulin G; enzyme-linked immunosorbent assay
Abstract:
... An indirect liquid-phase blocking (LPB) enzyme-linked immunosorbent assay (ELISA) using chicken and rabbit affinity purified immunoglobulin G (IgG) has been developed to detect and estimate avian infectious bronchitis virus (IBV) antigen concentration directly in infected allantoic fluid. The method is based on the principle of binding of specific IgG to the test IBV antigen and the assay of unbou ...
DOI:
10.1080/0307945021000024571
PubMed:
12593737

84. Molecular epizootiology of infectious bronchitis virus in Sweden indicating the involvement of a vaccine strain

Author:
Farsang, A.; Ros, C.; Renstrom, L.H.M.; Baule, C.; Soos, T.; Belak, S.
Source:
Avian pathology 2002 v.31 no.3 pp. 229-236
ISSN:
0307-9457
Subject:
Infectious bronchitis virus; epidemiology; strains; live vaccines; polymerase chain reaction; RNA-directed DNA polymerase; nucleotide sequences; phylogeny; genetic variation; detection; Sweden
Abstract:
... To improve the detection and molecular identification of infectious bronchitis virus (avian coronavirus), two reverse transcriptase-polymerase chain reaction (PCR) assays were developed. As 'diagnostic PCR', a set of consensus nested primers was selected from highly conserved stretches of the nucleocapsid (N) gene. As 'phylogeny' PCR, a fragment of the spike protein gene (S1) was amplified and the ...
DOI:
10.1080/03079450220136530
PubMed:
12396345

85. Detection of a coronavirus from turkey poults in Europe genetically related to infectious bronchitis virus of chickens

Author:
Cavanagh, D.; Mawditt, K.; Sharma, M.; Drury, S.E.; Ainsworth, H.L.; Britton, P.; Gough, R.E.
Source:
Avian pathology 2001 v.30 no.4 pp. 355-368
ISSN:
0307-9457
Subject:
chickens; poults; turkeys; cecum; digesta; nucleotide sequences; Infectious bronchitis virus; Great Britain
Abstract:
... Intestinal contents of 13-day-old turkey poults in Great Britain were analysed as the birds showed stunting, unevenness and lameness, with 4% mortality. At post mortem examination, the main gross features were fluid caecal and intestinal contents. Histological examination of tissues was largely unremarkable, apart from some sections that showed crypt dilation and flattened epithelia. Negative cont ...
DOI:
10.1080/03079450120066368
PubMed:
19184921

86. Detection of infectious bronchitis virus in experimentally infected chickens by an antigen-competitive ELISA

Author:
Bronzoni, R.V.M.; Pinto, A.A.; Montassier, H.J.
Source:
Avian pathology 2001 v.30 no.1 pp. 67-71
ISSN:
0307-9457
Subject:
chickens; Infectious bronchitis virus; detection; allantoic fluid; lungs; vaccination; trachea (vertebrates); enzyme-linked immunosorbent assay; viral antigens
Abstract:
... An antigen-competitive enzyme-linked immunosorbent assay (Ag-C-ELISA) was developed for the detection of infectious bronchitis virus (IBV) antigens, M41 strain, in tissues from experimentally infected chickens, or in allantoic fluid harvested from inoculated embryonated eggs. The detection limit of IBV in the Ag-C-ELISA was 10(4.1) median embryo infective doses (EID50)/well. Tracheal and lung samp ...
DOI:
10.1080/03079450020023221
PubMed:
19184876

87. Epidemiology of infectious bronchitis virus in Belgian broilers: a retrospective study, 1986 to 1995

Author:
Meulemans, G.; Boschmans, M.; Decaesstecker, M.; Berg, T.P. van den.; Denis, P.; Cavanagh, D.
Source:
Avian pathology 2001 v.30 no.4 pp. 411-421
ISSN:
0307-9457
Subject:
broiler chickens; Infectious bronchitis virus; epidemiology; vaccination; detection; strains; nucleotide sequences; Belgium
Abstract:
... Infectious bronchitis virus (IBV) was isolated from each of 236 broiler flocks that had respiratory infection (86%), impaired growth, enteritis and/or nephritis (14%), over a 10-year period from 1986 to 1995 in Belgium. Among them, 65% of the investigated flocks had not been vaccinated against infectious bronchitis. Type-specific reverse transcriptase polymerase chain reactions (RT-PCRs) were used ...
DOI:
10.1080/03079450120066412
PubMed:
19184926

88. Infectious bronchitis virus vaccine interferes with the replication of avian pneumovirus vaccine in domestic fowl

Author:
Cook, J.K.A.; Huggins, M.B.; Orbell, S.J.; Mawditt, K.; Cavanagh, D.
Source:
Avian pathology 2001 v.30 no.3 pp. 233-242
ISSN:
0307-9457
Subject:
chickens; Infectious bronchitis virus; live vaccines; Pneumovirus; vaccination; virus replication; immune response; disease prevention
Abstract:
... Experiments were performed in chickens to ascertain whether application of infectious bronchitis (IB) H120 vaccine had an effect on the replication of an attenuated avian pneumovirus (APV) strain, using as indicators virus detection, humoral antibody responses and clinical protection against in vivo APV challenge. A preliminary experiment demonstrated that pharyngeal swabs were as efficient for re ...
DOI:
10.1080/03079450120054640
PubMed:
19184905

89. Protection of chickens against renal damage caused by a nephropathogenic infectious bronchitis virus

Author:
Cook, J.K.A.; Chesher, J.; Baxendale, W.; Greenwood, N.; Huggins, M.B.; Orbell, S.J.
Source:
Avian pathology 2001 v.30 no.4 pp. 423-426
ISSN:
0307-9457
Subject:
chickens; Infectious bronchitis virus; live vaccines; vaccination; kidneys; nephritis; disease prevention
Abstract:
... The ability of the infectious bronchitis (IB) Ma5 and 4/91 live-attenuated vaccines to protect against kidney damage caused by a nephropathogenic strain of IB virus (B1648) was investigated. Protection parameters considered were gross and microscopic renal pathology, and the use of a polymerase chain reaction to detect IB RNA in kidney tissue. By each parameter, Ma5 vaccine alone provided poor pro ...
DOI:
10.1080/03079450120066421
PubMed:
19184927

90. Sequence analysis of nephropathogenic infectious bronchitis virus strains of the Massachusetts genotype in Beijing

Author:
Li, H.; Yang, H.
Source:
Avian pathology 2001 v.30 no.5 pp. 535-541
ISSN:
0307-9457
Subject:
chickens; Infectious bronchitis virus; nucleotide sequences; amino acid sequences; glycoproteins; strains; China
Abstract:
... The first 440 nucleotides of the S1 part of the spike protein (S) gene of three nephropathogenic infection bronchitis virus (IBV) strains (BJ1, BJ2 and BJ3), isolated from three rural chicken farms of Beijing with outbreaks of avian infectious bronchitis, were sequenced after reverse transcriptase-nested polymerase chain reaction amplification. The sequence data were analyzed and compared with the ...
DOI:
10.1080/03079450120078734
PubMed:
19184943

91. A nomenclature for avian coronavirus isolates and the question of species status

Author:
Cavanagh, D.
Source:
Avian pathology 2001 v.30 no.2 pp. 109-115
ISSN:
0307-9457
Subject:
terminology; Infectious bronchitis virus
Abstract:
... Currently, there is no agreed naming system for isolates of infectious bronchitis virus (IBV), whose host is the domestic fowl (Gallus gallus domesticus). A uniform, informative system for naming IBV isolates would be very helpful. Furthermore, the desirability of a single naming system has become more important with the recent discoveries that coronaviruses with genome organizations and gene sequ ...
DOI:
10.1080/03079450120044506
PubMed:
19184884

92. Detection of infectious bronchitis virus

Author:
Wit, J.J. de.
Source:
Avian pathology 2000 v.29 no.2 pp. 71-93
ISSN:
0307-9457
Subject:
diagnostic techniques; antigens; serodiagnosis; genome; Infectious bronchitis virus; detection; poultry
DOI:
10.1080/03079450094108
PubMed:
19184793

93. Turkey coronavirus is more closely related to avian infectious bronchitis virus than to mammalian coronaviruses: a review

Author:
Guy, J.S.
Source:
Avian pathology 2000 v.29 no.3 pp. 207-212
ISSN:
0307-9457
Subject:
host range; phylogeny; Infectious bronchitis virus; animal tissues
DOI:
10.1080/03079450050045459
PubMed:
19184806

94. Use of reverse transcriptase-polymerase chain reaction-restriction fragment length polymorphism to examine the interaction between infectious bronchitis virus strains Massachusetts 41 and JMK in ovo

Author:
Wang, X.; Khan, M.I.
Source:
Avian pathology 2000 v.29 no.5 pp. 441-448
ISSN:
0307-9457
Subject:
Infectious bronchitis virus; RNA-directed DNA polymerase; polymerase chain reaction; restriction fragment length polymorphism; RNA; strains
DOI:
10.1080/030794500750047199
PubMed:
19184836

95. Breadth of protection of the respiratory tract provided by different live-attenuated infectious bronchitis vaccines against challenge with infectious bronchitis viruses of heterologous serotypes

Author:
Cook, J.K.A.; Orbell, S.J.; Woods, M.A.; Huggins, M.B.
Source:
Avian pathology 1999 v.28 no.5 pp. 477-485
ISSN:
0307-9457
Subject:
chickens; Infectious bronchitis virus; live vaccines; vaccination; genetic variation; disease prevention
Abstract:
... The regime of administering the infectious bronchitis (IB) Ma5 vaccine (Massachusetts serotype) at 1 day old and the heterologous 4/91 vaccine at 2 weeks of age, was shown to be highly effective in protecting the respiratory tract of specified pathogen free chickens. Protection, as measured by assessing ciliary activity of the tracheal epithelium following challenge, was excellent against challeng ...
DOI:
10.1080/03079459994506

96. Co-circulation of four types of infectious bronchitis virus (793/B, 624/I, B1648 and Massachusetts)

Author:
Capua, I.; Minta, Z.; Karpinska, E.; Mawditt, K.; Britton, P.; Cavanagh, D.; Gough, R.E.
Source:
Avian pathology 1999 v.28 no.6 pp. 587-592
ISSN:
0307-9457
Subject:
Infectious bronchitis virus; strains; nucleotide sequences; Italy; Poland
DOI:
10.1080/03079459994380

97. Detection and strain diffentiation of infectious bronchitis virus in tracheal tissues from experimentally infected chickens by reverse transcription-polymerase chain reaction. Comparison with an immunohistochemical technique

Author:
Handberg, K.J.; Nielsen, O.L.; Pedersen, M.W.; Jorgensen, P.H.
Source:
Avian pathology 1999 v.28 no.4 pp. 327-335
ISSN:
0307-9457
Subject:
chickens; Infectious bronchitis virus; detection; strain differences; polymerase chain reaction; immunohistochemistry; rapid methods; trachea (vertebrates)
Abstract:
... Oligonucleotide pairs were constructed for priming the amplification of fragments of nucleocapsid (N) protein and spike glycoprotein (S) genes of avian infectious bronchitis virus (IBV) by reverse transcription-polymerase chain reaction (RT-PCR). One oligonucleotide pair amplified a common segment of the N-gene and could detect various strains of IBV in allantoic fluid from inoculated chicken embr ...
DOI:
10.1080/03079459994579

98. Longitudinal field studies of infectious bronchitis virus and avian pneumovirus in broilers using type-specific polymerase chain reactions

Author:
Cavanagh, D.; Mawditt, K.; Britton, P.; Naylor, C.J.
Source:
Avian pathology 1999 v.28 no.6 pp. 593-605
ISSN:
0307-9457
Subject:
broiler chickens; Infectious bronchitis virus; Pneumovirus; polymerase chain reaction; longitudinal studies; detection; vaccines; incidence; flocks; England; Scotland
DOI:
10.1080/03079459994399

99. Aflatoxin and immunity in layer hens

Author:
Azzam, A.H.; Gabal, M.A.
Source:
Avian pathology 1998 v.27 no.6 pp. 570-577
ISSN:
0307-9457
Subject:
feeds; antibody formation; fowl cholera; live vaccines; aflatoxins; disease control; egg weight; Avian orthoavulavirus 1; Infectious bronchitis virus; Infectious bursal disease virus; vaccination; egg production; hens; mortality
Abstract:
... A study was conducted on the impact of aflatoxin in the feed on the prophylactic immunization of layer hens against Newcastle disease, infectious bronchitis, infectious bursal disease and fowl cholera. Four-hundred-and-eighty 18-week-old white leghorn chickens were used. Different groups of hens were vaccinated, as per commercial recommendations, with a commercial inactivated triple vaccine agains ...
DOI:
10.1080/03079459808419386
PubMed:
18484045

100. Detection of specific IgM antibodies to infectious bronchitis virus by an antibody-capture ELISA

Author:
Wit, J.J. de; Mekkes, D.R.; Koch, G.; Westenbrink, F.
Source:
Avian pathology 1998 v.27 no.2 pp. 155-160
ISSN:
0307-9457
Subject:
chickens; Infectious bronchitis virus; immunoglobulin M; antibody detection; vaccination; diagnostic techniques; enzyme-linked immunosorbent assay
Abstract:
... The results of a new antibody-capture ELISA (alpha-IgM-IBV ELISA), specific for IgM directed against Infectious Bronchitis Virus (IBV) show that this assay is a useful tool for diagnosing IBV infections. The data include individual results of the alpha-IgM-IBV ELISA in sequential SPF chicken sera after vaccination with H120 and challenge with M41, the specificity is based on results of 499 SPF ser ...
DOI:
10.1080/03079459808419317
PubMed:
18483980