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1. 3D holotomographic monitoring of Ca++ dynamics during ionophore-induced Neospora caninum tachyzoite egress from primary bovine host endothelial cells

Author:
C. Larrazabal; C. Hermosilla; A. Taubert; I. Conejeros
Source:
Parasitology research 2022 v.121 no.4 pp. 1169-1177
ISSN:
0932-0113
Subject:
Neospora caninum,   etc   ; Toxoplasma gondii; blood; calcium; calcium ionophores; cattle; microscopy; parasites; parasitology; research; tachyzoites;     Show all 11 Subjects
Abstract:
... Neospora caninum represents an obligate intracellular parasite that belongs to the phylum Apicomplexa and is a major abortive agent in bovines. During merogony, N. caninum tachyzoites invade and proliferate in host cells in vivo, including endothelial cells of lymphatic and blood vessels. The egress at the end of the lytic cycle is tightly regulated in apicomplexans. Evidence in Toxoplasma gondii ...
DOI:
10.1007/s00436-021-07260-2

2. Sarcocystis neurona, Neospora spp. and Toxoplasma gondii infections in horses and equine protozoal myeloencephalitis (EPM): five decades of personal experience, perspectives and update

Author:
J. P. Dubey
Source:
Parasitology 2022 v.149 no.6 pp. 717-728
ISSN:
1469-8161
Subject:
Neospora caninum,   etc   ; Neospora hughesi; Sarcocystis neurona; Toxoplasma gondii; equine protozoal myeloencephalitis; host range; parasites; parasitology;     Show all 8 Subjects
Abstract:
... Sarcocystis neurona, Neospora spp. and Toxoplasma gondii are related protozoans; they were considered the same parasite until 1970s. Two of these parasites, S. neurona and Neospora spp. are associated with a neurological syndrome in horses, called equine protozoal myeloencephalitis (EPM). The diagnosis and treatment of EPM are difficult. Most cases of EPM are related to S. neurona while only a few ...
DOI:
10.1017/S0031182021002055

3. Prevalence and associated risk factors of Neospora caninum infection among cattle in mainland China: A systematic review and meta-analysis

Author:
Zhu Ying; Zi-Fu Zhu; Xu Yang; Jing Liu; Qun Liu
Source:
Preventive veterinary medicine 2022 v.201 pp. 105593
ISSN:
0167-5877
Subject:
Neospora caninum,   etc   ; Protozoa; cattle industry; etiology; meta-analysis; parasites; statistical models; systematic review; veterinary medicine; China;     Show all 10 Subjects
Abstract:
... Neospora caninum, an intracellular protozoan, has attracted much attention because of the etiology of reproductive disorders in cattle. Although numerous relevant studies have been published, the overall prevalence of Neospora caninum infection among cattle in mainland China is still unknown, and associated risk factors need to be evaluated to establish preventive measures. We systematically searc ...
DOI:
10.1016/j.prevetmed.2022.105593

4. Detection of Anti-Neospora caninum Antibodies on Dairy Cattle Farms in Southern Italy

Author:
Raffaella Manca; Giuseppina Ciccarese; Domenico Scaltrito; Daniela Chirizzi
Source:
Veterinary sciences 2022 v.9 no.2 pp. -
ISSN:
2306-7381
Subject:
Neospora caninum,   etc   ; Canidae; blood serum; definitive hosts; enzyme-linked immunosorbent assay; farms; neosporosis; parasites; seroprevalence; Italy;     Show all 10 Subjects
Abstract:
... Neosporosis is recognized as one of the major causes of bovine abortion worldwide. Canids are the main definitive host for this parasite and the presence of dogs in the farm is an important factor for the Neospora caninum infection in bovines. Since, in the province of Lecce, located in the Apulia region of Southern Italy, there are no studies showing the presence of the infection in farm animals, ...
DOI:
10.3390/vetsci9020087

5. Assessment of transplacental transmission of Neospora caninum and Toxoplasma gondii in Neotropical deer: An estimative based on serology

Author:
Maria Helena Mazzoni Baldini; Eluzai Dinai Pinto Sandoval; José Maurício Barbanti Duarte
Source:
Veterinary parasitology 2022 v.303 pp. 109677
ISSN:
0304-4017
Subject:
Neospora caninum,   etc   ; Neotropics; Toxoplasma gondii; blood serum; deer; neosporosis; pregnancy; serology; seroprevalence; toxoplasmosis; transplacental transmission; veterinary parasitology; Brazil;     Show all 13 Subjects
Abstract:
... Transplacental transmission of Neospora caninum and Toxoplasma gondii is well known in some domestic species and despite both parasites having been proved to infect deer fetuses during gestation, the congenital transmission rate in South-American deer species is still unknown. This study aimed to estimate the congenital transmission rate of neosporosis and toxoplasmosis in captive deer populations ...
DOI:
10.1016/j.vetpar.2022.109677

6. Detection of anti-Neospora caninum antibodies in sheep’s full-cream milk by a time-resolved fluorescence immunoassay

Author:
Ana Huertas-López; Roberto Sánchez-Sánchez; Carlos Diezma-Díaz; Gema Álvarez-García; Carlos Martínez-Carrasco; Silvia Martínez-Subiela; José Joaquín Cerón
Source:
Veterinary parasitology 2022 v.301 pp. 109641
ISSN:
0304-4017
Subject:
Neospora caninum,   etc   ; animal stress; antigens; detection limit; diagnostic sensitivity; fluorescent antibody technique; immunoglobulin G; milk; neosporosis; sheep; tachyzoites; veterinary parasitology;     Show all 12 Subjects
Abstract:
... Ovine neosporosis, caused by the Apicomplexan parasite Neospora caninum, leads to reproductive failure worldwide. Nowadays, there is a trend to develop diagnostic techniques using non-invasive samples, such as milk, in order to reduce animal stress, sample collection effort, and costs. The objective of this study was to develop and validate a highly sensitive and specific serological technique, ba ...
DOI:
10.1016/j.vetpar.2021.109641

7. Active shedding of Neospora caninum detected in Australian wild canids in a nonexperimental context

Author:
Mikaeylah J. Davidson; Jose L. Huaman; Carlo Pacioni; Danielle Stephens; Yvette Hitchen; Teresa G. Carvalho
Source:
Transboundary and emerging diseases 2022 v.69 no.4 pp. 1862-1871
ISSN:
1865-1674
Subject:
Neospora caninum,   etc   ; Canidae; cattle; dingoes; dogs; economic impact; genetic analysis; genotype; hosts; oocysts; parasites; reproduction; species identification; streams; wildlife; Australia;     Show all 16 Subjects
Abstract:
... Infection with Neospora caninum parasites is a leading cause of reproduction losses in cattle worldwide. In Australia, this loss is estimated to total AU$110 million every year. However, despite this considerable economic impact, the transmission cycle and the host(s) responsible for the sylvatic transmission of the parasite remain to be defined. Dingoes (Canis familiaris) have been suggested to b ...
DOI:
10.1111/tbed.14170

8. Neosporosis in sheep: A systematic review and meta-analysis of global seroprevalence and related risk factors

Author:
Luisa F. Mendoza-Morales; Valentina Lagorio; Mariana G. Corigliano; Edwin Sánchez-López; Víctor A. Ramos-Duarte; Marina Clemente; Valeria A. Sander
Source:
Acta tropica 2022 v.233 pp. 106569
ISSN:
0001-706X
Subject:
Neospora caninum,   etc   ; cattle; data collection; farms; hosts; latitude; longitude; meta-analysis; neosporosis; seroprevalence; sheep; statistical models; systematic review; Africa; Colombia;     Show all 15 Subjects
Abstract:
... Neosporosis is recognized as the main cause of abortions in cattle worldwide and there is an increasing concern about its role in ovine reproductive losses; however, epidemiological studies regarding neosporosis in sheep are still limited. This meta-analysis aimed to estimate the global pooled seroprevalence and associated risk factors of ovine neosporosis. In the current report, a comprehensive s ...
DOI:
10.1016/j.actatropica.2022.106569

9. Prevalence and risk factors of Neospora caninum and Toxoplasma gondii infection in breeding ewes from central western Mexico

Author:
J. Alcalá-Gómez; L. Medina-Esparza; I. Vitela-Mendoza; C. Cruz-Vázquez; T. Quezada-Tristán; J. F. Gómez-Leyva
Source:
Tropical animal health and production 2022 v.54 no.4 pp. 225
ISSN:
0049-4747
Subject:
Neospora caninum,   etc   ; DNA; Toxoplasma gondii; animal health; blood; farms; hygiene; mixed infection; public water supply; regression analysis; seroprevalence; waste management; Mexico;     Show all 13 Subjects
Abstract:
... The objective of the study was to analyse the prevalence of infection by N. caninum and T. gondii in breeding ewes from central western Mexico. For this purpose, 184 blood samples were collected from sheep in the reproductive stage, which were analysed by ELISA and PCR tests, respectively, and the association between seroprevalence and some management factors was estimated by means of a logistic r ...
DOI:
10.1007/s11250-022-03221-8

10. The Utility of Serological Analysis for Neospora caninum Infection in Dairy Cattle Farms Management: Serological Investigation and Evaluation of the Effects on Reproductive and Productive Performances in Two Study Herds in Northern Italy

Author:
Luca Villa; Alessia Libera Gazzonis; Emanuele Fumagalli; Sergio Aurelio Zanzani; Maria Teresa Manfredi
Source:
Animals 2022 v.12 no.6 pp. -
ISSN:
2076-2615
Subject:
Neospora caninum,   etc   ; antibodies; blood; case studies; dairy cattle; epidemiological studies; farms; herds; milk; milk yield; neosporosis; parasites; serodiagnosis; seroprevalence; titration; Italy;     Show all 16 Subjects
Abstract:
... Neospora caninum is recognized as a major cause of abortion in cattle, determining economic losses, particularly in dairy industries. To evaluate the impact of neosporosis on herd efficiency, and to understand how the serological analysis for N. caninum is explicative of the farm picture, an epidemiological study was designed in two dairy farms recruited as a case study. Blood samples were collect ...
DOI:
10.3390/ani12060786

11. Role of dense granule antigen 7 in vertical transmission of Neospora caninum in C57BL/6 mice infected during early pregnancy

Author:
Ahmed M. Abdou; Rina Ikeda; Kenichi Watanabe; Hidefumi Furuoka; Yoshifumi Nishikawa
Source:
Parasitology international 2022 v.89 pp. 102576
ISSN:
1383-5769
Subject:
Neospora caninum,   etc   ; DNA; antigens; brain; cattle; definitive hosts; gene expression; histopathology; inflammation; intermediate hosts; mice; neosporosis; parasites; parasitology; placenta; pregnancy; progeny; tachyzoites;     Show all 18 Subjects
Abstract:
... Neosporosis is a parasitic disease affecting the health of dogs and cattle worldwide. It is caused by Neospora caninum, an obligate intracellular apicomplexan parasite. Dogs are its definitive host, it mostly infects livestock animals, especially cattle that acts as intermediate host. It is necessary to have well-established models of abortion and vertical transmission in experimental animals, in ...
DOI:
10.1016/j.parint.2022.102576

12. Prevalence of Neospora caninum antibodies in fattening pigs and sows from intensive farms in northern Italy

Author:
Luca Villa; Alessia Libera Gazzonis; Carolina Allievi; Sergio Aurelio Zanzani; Michele Mortarino; Maria Teresa Manfredi
Source:
Parasitology research 2022 v.121 no.3 pp. 1033-1040
ISSN:
0932-0113
Subject:
Neospora caninum,   etc   ; antibodies; cattle; epidemiological studies; farm management; farms; fluorescent antibody technique; parasites; parasitology; reproductive efficiency; research; risk; seroprevalence; statistical analysis; Italy;     Show all 15 Subjects
Abstract:
... Neospora caninum (Apicomplexa, Sarcocystidae) is a major cause of reproductive failure in cattle. In pigs, only a few studies investigated the effects of this parasite on reproductive efficiency. Considering the relevance of swine farms in northern Italian regions, an epidemiological survey was designed to investigate the spread of N. caninum infection. Three hundred seventy fattening pigs and sow ...
DOI:
10.1007/s00436-022-07457-z

13. Seroprevalence and associated risk factors of Toxoplasma gondii and Neospora caninum infections in cattle in Central India

Author:
Bhavana K. Hebbar; Pallabi Mitra; Waqar Khan; Sandeep Chaudhari; Shilpshri Shinde; Abhijit S. Deshmukh
Source:
Parasitology international 2022 v.87 pp. 102514
ISSN:
1383-5769
Subject:
Neospora caninum,   etc   ; Toxoplasma gondii; agglutination tests; blood serum; cattle; enzyme-linked immunosorbent assay; farms; fluorescent antibody technique; odds ratio; parasitology; seroprevalence; India;     Show all 12 Subjects
Abstract:
... Toxoplasma gondii and Neospora caninum are closely related cyst-forming parasites identified as important causes of reproductive failures in ruminants. While these parasites have been reported worldwide, seroprevalence and associated risk factors for cattle infections have not been determined in India. A total of 576 serum samples of cattle were analyzed for antibodies to T. gondii and N. caninum ...
DOI:
10.1016/j.parint.2021.102514

14. Seroprevalence and risk factors of Neospora caninum infection in cattle in China from 2011 to 2020: A systematic review and meta-analysis

Author:
Xin-Yu Wei; Qi An; Nian-Yu Xue; Yu Chen; Ying-Yu Chen; Yuan Zhang; Quan Zhao; Chu-Ren Wang
Source:
Preventive veterinary medicine 2022 v.203 pp. 105620
ISSN:
0167-5877
Subject:
Neospora caninum,   etc   ; Protozoa; dairy cattle; farms; females; infectious diseases; meta-analysis; neosporosis; parasites; seroprevalence; statistical models; summer; systematic review; veterinary medicine; China;     Show all 15 Subjects
Abstract:
... Neosporosis is a worldwide infectious disease caused by the obligate intracellular parasite protozoan Neospora caninum (N. caninum), which has a heteroxenous life cycle and affects a wide range of warm-blooded animals, especially canines and cattle. Here, a meta-analysis was conducted to assess the overall seroprevalence and potential risk factors for N. caninum infection among cattle in China. Th ...
DOI:
10.1016/j.prevetmed.2022.105620

15. Molecular detection and phylogenetic analysis of Neospora caninum in various hosts from Iran

Author:
Jamal Gharekhani; Mohammad Yakhchali; Reza Heidari
Source:
Comparative immunology, microbiology, and infectious diseases 2022 v.80 pp. 101737
ISSN:
0147-9571
Subject:
Neospora caninum,   etc   ; Canis latrans; farms; fetal death; genes; herds; microbiology; microscopy; oocysts; parasites; pathogenicity; phylogeny; polymerase chain reaction; semen; seroprevalence; sheep; slaughterhouses; Iran;     Show all 18 Subjects
Abstract:
... Different N. caninum strains with distinct biological characteristics and pathogenicity have been introduced from various areas of the world. This study aimed to detect Neospora-infection in different hosts from Iran using the nested-Polymerase Chain Reaction (PCR) technique and to perform the phylogenetic analysis of N. caninum isolates using the Nc-5 gene. Different species of parasite hosts (ca ...
DOI:
10.1016/j.cimid.2021.101737

16. Neospora caninum infection and reproductive problems in dairy cows from Brazil: A case-control study

Author:
Giovanna Gati de Souza; Lidiana Zanetti Amatti; Luana Venâncio Garcia; Letícia Ramos Costa; Ana Flávia Minutti; Thais Agostinho Martins; Alexey Leon Gomel Bogado; Fernanda Saules Ignácio; Breno Fernando Martins de Almeida; João Luis Garcia; Luiz Daniel de Barros
Source:
Veterinary Parasitology: Regional Studies and Reports 2022 v.28 pp. 100683
ISSN:
2405-9390
Subject:
Neospora caninum,   etc   ; Protozoa; blood serum; case-control studies; confidence interval; fluorescent antibody technique; infectious diseases; neosporosis; parasites; regression analysis; seroprevalence; veterinary parasitology; Brazil;     Show all 13 Subjects
Abstract:
... Neosporosis, an infectious disease caused by the protozoan Neospora caninum, has been associated with economic losses in cattle rearing worldwide. However, previous studies have not presented any evidence regarding the association between serological status of neosporosis and alteration of the reproductive parameters. Thus, this study aimed to determine whether N. caninum is associated with reprod ...
DOI:
10.1016/j.vprsr.2021.100683

17. Unaffected semen quality parameters in Neospora caninum seropositive Belgian Blue bulls

Author:
C. Kemel; M. Salamone; H. Van Loo; C. Latour; S. Vandeputte; J. Callens; M. Hostens; G. Opsomer
Source:
Theriogenology 2022 v.191 pp. 10-15
ISSN:
0093-691X
Subject:
Neospora caninum,   etc   ; Belgian Blue; DNA; Protozoa; animal reproduction; antibodies; artificial vagina; barns; data collection; humidity; mortality; multivariate analysis; neosporosis; parasites; semen quality; seroprevalence; spermatogenesis; temperature;     Show all 18 Subjects
Abstract:
... Neospora caninum is a protozoan parasite that causes abortion, perinatal mortality, and subfertility in cattle worldwide. Despite the presence of the DNA of the parasite in semen of infected bulls, the effect on semen quality has not been extensively studied. This study aimed to investigate the effect of a natural Neospora caninum infection on fresh and frozen semen quality parameters in Belgian B ...
DOI:
10.1016/j.theriogenology.2022.07.013

18. Seroprevalence of Neospora caninum and risk factors associated with infection in water buffaloes (Bubalus bubalis) from Maranhão State, Brazil

Author:
Arlan Araujo Rodrigues; Danilo Rodrigues Barros Brito; Isabelli Sayuri Kono; Sara Silva Reis; Beatriz de Souza Lima Nino; Thiago Vinícius Costa Nascimento; Luiz Daniel de Barros; João Luis Garcia; Ivo Alexandre Leme da Cunha
Source:
Veterinary Parasitology: Regional Studies and Reports 2022 v.27 pp. 100661
ISSN:
2405-9390
Subject:
Neospora caninum,   etc   ; Bubalus bubalis; DNA; anthelmintics; buffaloes; deworming; fluorescent antibody technique; fomites; multivariate analysis; neosporosis; odds ratio; polymerase chain reaction; questionnaires; risk factors; seroprevalence; veterinary parasitology; Brazil;     Show all 17 Subjects
Abstract:
... The aim of this work was to determine the seroprevalence of Neospora caninum in buffaloes (Bubalus bubalis) from Maranhão State, Brazil, and identify risk factors associated with infection. In total, 338 buffaloes of different ages and both sexes from four farms were randomly selected. Information about the study region, animals and management was collected using an epidemiological questionnaire. ...
DOI:
10.1016/j.vprsr.2021.100661

19. Serosurvey for selected parasitic and bacterial pathogens in darwin's fox (lycalopex fulvipes): not only dog diseases are a threat

Author:
Ezequiel Hidalgo-Hermoso; Javier Cabello; Juan Verasay; Dario Moreira-Arce; Marcos Hidalgo; Pedro Abalos; Consuelo Borie; Nicolas Galarce; Constanza Napolitano; Irene Sacristán; Aitor Cevidanes; Galia Ramírez-Toloza; Ariel Farias; Sophia Di Cataldo; Rocio Lagos; Javier Millán
Source:
Journal of wildlife diseases 2022 v.58 no.1 pp. 76-85
ISSN:
0090-3558
Subject:
Neospora caninum,   etc   ; Brucella melitensis biovar Abortus; Brucella melitensis biovar Canis; Coxiella burnetii; Leptospira; Lycalopex fulvipes; Toxoplasma gondii; blood serum; disease prevention; dogs; landscapes; morbidity; mortality; seroprevalence; serotypes; wildlife; Chile;     Show all 17 Subjects
Abstract:
... The Darwin's fox (Lycalopex fulvipes) is one of the most endangered carnivores worldwide, with the risk of disease spillover from domestic dogs being a major conservation threat. However, lack of epidemiologic information about generalist, non–dog-transmission-dependent protozoal and bacterial pathogens may be a barrier for disease prevention and management. To determine the exposure of some of th ...
DOI:
10.7589/JWD-D-21-00024

20. Spatial–temporal trends and economic losses associated with bovine abortifacients in central Argentina

Author:
Germán J. Cantón; Fabiana Moreno; María A. Fiorentino; Yanina P. Hecker; Maximiliano Spetter; Franco Fiorani; María G. Monterubbianesi; Juan A. García; Erika González Altamiranda; Karina M. Cirone; Enrique L. Louge Uriarte; Andrea E. Verna; Maia Marin; Felipe Cheuquepán; Rosana Malena; Claudia Morsella; Fernando A. Paolicchi; Eleonora L. Morrell; Dadin P. Moore
Source:
Tropical animal health and production 2022 v.54 no.4 pp. 242
ISSN:
0049-4747
Subject:
Neospora caninum,   etc   ; Bovine viral diarrhea virus 1; Brucella melitensis biovar Abortus; Campylobacter fetus; Leptospira; abortifacients; animal health; at-risk population; beef; beef cattle; beef industry; dairy cattle; dairy industry; risk; Argentina;     Show all 15 Subjects
Abstract:
... The aims of this work are, firstly, to provide the geolocalization of cases of bovine abortion with definitive diagnosis and, secondly, to estimate the economic losses due to the most frequent abortifacients diagnosed agents in cattle in Buenos Aires province, Argentina. The total beef and dairy cattle population at risk of abortion is 8,358,186 and 538,076, respectively. In beef cattle, the overa ...
DOI:
10.1007/s11250-022-03237-0