PubAg

Main content area

You searched for: Subject "Cryptosporidium bovis" Remove constraint Subject: "Cryptosporidium bovis"
Start Over

Search

52  Search Results

« Previous | 1 - 20 of 52 |
Number of results to display per page

Search Results

1. Molecular epidemiology of Cryptosporidium spp. in calves in Estonia: high prevalence of Cryptosporidium parvum shedding and 10 subtypes identified

Author:
Santoro, Azzurra; Dorbek-Kolin, Elisabeth; Jeremejeva, Julia; Tummeleht, Lea; Orro, Toomas; Jokelainen, Pikka; Lassen, Brian
Source:
Parasitology 2019 v.146 no.2 pp. 261-267
ISSN:
1469-8161
Subject:
Cryptosporidium bovis,   etc   ; Cryptosporidium parvum; Cryptosporidium ryanae; DNA; calves; farms; feces; genes; glycoproteins; livestock and meat industry; molecular epidemiology; parasites; questionnaires; ribosomal RNA; spring; Estonia;     Show all 16 Subjects
Abstract:
... We investigated the molecular epidemiology of Cryptosporidium spp. in Estonia by testing fecal samples from 486 calves aged <2 months, raised on 53 cattle farms, for the presence of Cryptosporidium DNA. The parasites were identified and characterized by sequencing of the 18S rRNA gene and of the 60 kDa glycoprotein (gp60) gene. Moreover, using a questionnaire, we surveyed factors that could be rel ...
DOI:
10.1017/S0031182018001348
PubMed:
30086806 30086806

2. Outbreak of cryptosporidiosis due to Cryptosporidium parvum subtype IIdA19G1 in neonatal calves on a dairy farm in China

Author:
Li, Na; Wang, Rui; Cai, Min; Jiang, Wen; Feng, Yaoyu; Xiao, Lihua
Source:
International journal for parasitology 2019 v.49 no.7 pp. 569-577
ISSN:
0020-7519
Subject:
Cryptosporidium bovis,   etc   ; Cryptosporidium andersoni; Cryptosporidium parvum; Cryptosporidium ryanae; Rotavirus; antibiotics; cryptosporidiosis; dairy calves; dairy farming; diarrhea; enteropathogens; farms; feces; genotyping; immunoassays; mixed infection; polymerase chain reaction; regression analysis; risk factors; therapeutics; virulence; China;     Show all 22 Subjects
Abstract:
... Neonatal diarrhea is one of the most important syndromes in dairy cattle. Among enteropathogens, Cryptosporidium spp. are primary causes of diarrhea, but outbreaks due to cryptosporidiosis are rarely reported in cattle. From January to April in 2016, severe diarrhea was observed in over 400 neonatal dairy calves on a large dairy farm in Jiangsu Province of East China. Approximately 360 calves died ...
DOI:
10.1016/j.ijpara.2019.02.006

3. Molecular epidemiology of Cryptosporidium spp. in dairy cattle in Guangdong Province, South China

Author:
Liang, Nan; Wu, Yayun; Sun, Mingfei; Chang, Yankai; Lin, Xuhui; Yu, Linzeng; Hu, Suhui; Zhang, Xiangqian; Zheng, Shuangjian; Cui, Zhaohui; Zhang, Longxian
Source:
Parasitology 2019 v.146 no.1 pp. 28-32
ISSN:
1469-8161
Subject:
Cryptosporidium bovis,   etc   ; Cryptosporidium andersoni; Cryptosporidium parvum; Cryptosporidium ryanae; DNA; adults; calves; dairy cattle; dairy farming; farms; feces; heifers; linkage disequilibrium; molecular epidemiology; multilocus sequence typing; nucleotide sequences; polymerase chain reaction; population structure; sheep; China;     Show all 20 Subjects
Abstract:
... To determine the prevalence of Cryptosporidium in dairy cattle in Guangdong Province, South China, 1440 fecal samples were collected from 10 farms and screened for Cryptosporidium with PCR. The overall prevalence of Cryptosporidium was 4.38% (63/1440), and the infection rates in preweaned calves, postweaned calves, heifers and adults were 6.4% (19/297), 6.19% (33/533), 1.48% (4/271) and 2.06% (7/3 ...
DOI:
10.1017/S0031182018001129
PubMed:
29986775

4. Prevalence and molecular characterization of Cryptosporidium spp. and Giardia duodenalis in 1–2-month-old highland yaks in Qinghai Province, China

Author:
Wang, Geping; Wang, Guanghua; Li, Xiuping; Zhang, Xueyong; Karanis, Gabriele; Jian, Yingna; Ma, Liqing; Karanis, Panagiotis
Source:
Parasitology research 2018 v.117 no.6 pp. 1793-1800
ISSN:
0932-0113
Subject:
Cryptosporidium bovis,   etc   ; Giardia lamblia; diarrhea; feces; fluorescence microscopy; fluorescent antibody technique; humans; parasites; polymerase chain reaction; staining; towns; yaks; China;     Show all 13 Subjects
Abstract:
... Cryptosporidium and Giardia are ubiquitous parasites that infect humans and animals. Few reports are available on the prevalence of these two protozoan parasites in yaks (Bos grunniens). In this study, 344 faecal samples were collected from yaks with diarrhoea in the Chenduo and Nangqian counties of Qinghai Province, China. Cryptosporidium spp. and Giardia duodenalis were detected by light and imm ...
DOI:
10.1007/s00436-018-5861-3

5. Prevalence and genotypic identification of Cryptosporidium spp., Giardia duodenalis and Enterocytozoon bieneusi in pre-weaned dairy calves in Guangdong, China

Author:
Feng, Yuanyuan; Gong, Xiaoqing; Zhu, Kexin; Li, Na; Yu, Zhengjie; Guo, Yaqiong; Weng, Yabiao; Kváč, Martin; Feng, Yaoyu; Xiao, Lihua
Source:
Parasites & vectors 2019 v.12 no.1 pp. 41
ISSN:
1756-3305
Subject:
Cryptosporidium bovis,   etc   ; Cryptosporidium parvum; Cryptosporidium ryanae; Enterocytozoon bieneusi; Giardia lamblia; chi-square distribution; climate; dairy calves; disease transmission; dominant species; emerging diseases; enteropathogens; genotype; genotyping; humans; loci; monsoon season; polymerase chain reaction; sequence analysis; signs and symptoms (animals and humans); spring; summer; winter; zoonoses; China;     Show all 25 Subjects
Abstract:
... BACKGROUND: Cryptosporidium spp., Giardia duodenalis and Enterocytozoon bieneusi are common enteric pathogens in humans and animals. Data on the transmission of these pathogens are scarce from Guangdong, China, which has a subtropical monsoon climate and is the epicenter for many emerging infectious diseases. This study was conducted to better understand the prevalence and identity of the three pa ...
DOI:
10.1186/s13071-019-3310-5

6. Genetic uniqueness of Cryptosporidium parvum from dairy calves in Colombia

Author:
Avendaño, Catalina; Ramo, Ana; Vergara-Castiblanco, Claudia; Sánchez-Acedo, Caridad; Quílez, Joaquín
Source:
Parasitology research 2018 v.117 no.5 pp. 1317-1323
ISSN:
0932-0113
Subject:
Cryptosporidium bovis,   etc   ; Cryptosporidium parvum; Protozoa; dairy calves; dairy farming; diarrhea; farms; feces; genes; glycoproteins; livestock and meat industry; microscopy; oocysts; probability; ribosomal RNA; sequence analysis; Colombia;     Show all 17 Subjects
Abstract:
... Fecal specimens from 432 pre-weaned calves younger than 35 days were collected over a 2-year period (2010–2012) from 74 dairy cattle farms in the central area of Colombia. These samples were microscopically examined for the presence of Cryptosporidium oocysts, and positive specimens were selected for molecular examination. Microscopy revealed that 115 calves (26.6%) from 44 farms (59.5%) tested po ...
DOI:
10.1007/s00436-018-5818-6

7. Detection and characterization of Cryptosporidium species and genotypes in three chicken production systems in Brazil using different molecular diagnosis protocols

Author:
Santana, Bruna Nicoleti; Kurahara, Brayan; Nakamura, Alex Akira; da Silva Camargo, Vinícius; Ferrari, Elis Domingos; da Silva, Giane Serafim; Nagata, Walter Bertequini; Meireles, Marcelo Vasconcelos
Source:
Preventive veterinary medicine 2018 v.151 pp. 73-78
ISSN:
0167-5877
Subject:
Cryptosporidium bovis,   etc   ; DNA; actin; chickens; feces; genes; genetic similarity; genotype; oocysts; polymerase chain reaction; poultry production; production technology; ribosomal RNA; sequence analysis; Brazil;     Show all 15 Subjects
Abstract:
... The objective of this study was to determine the occurrence of Cryptosporidium spp. in domestic chickens raised in different chicken production systems in Brazil using three nested PCR protocols. The purification and concentration of oocysts present in 190 fecal samples from chickens raised in extensive, semi-intensive and intensive production systems were accomplished by centrifugal flotation in ...
DOI:
10.1016/j.prevetmed.2018.01.007

8. Widespread Occurrence of Zoonotic Cryptosporidium Species and Subtypes in Dairy Cattle from Northeast China: Public Health Concerns

Author:
Tao, Wei; Li, Yijing; Yang, Hang; Song, Mingxin; Lu, Yixin; Li, Wei
Source:
The Journal of parasitology 2018 v.104 no.1 pp. 10-17
ISSN:
0022-3395
Subject:
Cryptosporidium bovis,   etc   ; Cryptosporidium andersoni; Cryptosporidium parvum; Cryptosporidium ryanae; DNA; cities; cryptosporidiosis; dairy cattle; dominant species; genes; genetic traits; genotype; glycoproteins; livestock and meat industry; monitoring; parasites; polymerase chain reaction; public health; ribosomal RNA; sequence analysis; China;     Show all 21 Subjects
Abstract:
... Bovine cryptosporidiosis constitutes a threat to the livestock industry and public health worldwide. In the present study we investigated dairy cattle of all ages in northeast China for the prevalence and genetic traits of Cryptosporidium. Nested polymerase chain reaction of the small subunit rRNA gene was used to identify Cryptosporidium species or genotype. The parasite was detected in 130 of 53 ...
DOI:
10.1645/17-140

9. Molecular analysis of Cryptosporidium from cattle from five states of Peninsular Malaysia

Author:
Yap, Nan Jiun; Koehler, Anson V.; Ebner, Janine; Tan, Tiong Kai; Lim, Yvonne A.L.; Gasser, Robin B.
Source:
Molecular and cellular probes 2016 v.30 no.1 pp. 39-43
ISSN:
0890-8508
Subject:
Cryptosporidium bovis,   etc   ; Cryptosporidium ryanae; DNA; calves; cattle industry; cryptosporidiosis; farms; feces; polymerase chain reaction; public health; rural communities; zoonoses; Malaysia;     Show all 13 Subjects
Abstract:
... Despite the importance of the cattle industry in Malaysia, there are very few studies of the diversity and public health significance of bovine cryptosporidiosis in this country. In the present study, we used a PCR-based approach to detect and genetically characterize Cryptosporidium DNA in faecal samples from a cohort of 215 asymptomatic cattle (of different ages) from six farms from five states ...
DOI:
10.1016/j.mcp.2016.01.002

10. First report of Cryptosporidium species in farmed and wild buffalo from the Northern Territory, Australia

Author:
Zahedi, Alireza; Phasey, Jordan; Boland, Tony; Ryan, Una
Source:
Parasitology research 2016 v.115 no.3 pp. 1349-1353
ISSN:
0932-0113
Subject:
Cryptosporidium bovis,   etc   ; Cryptosporidium parvum; adults; buffaloes; epidemiological studies; feces; glycoproteins; humans; loci; oocysts; quantitative polymerase chain reaction; rivers; sequence analysis; waterways; Northern Territory;     Show all 15 Subjects
Abstract:
... A molecular epidemiological survey of Cryptosporidium from water buffalo (Bubalus bubalis) in the Northern Territory in Australia was conducted. Fecal samples were collected from adult farmed (n = 50) and wild buffalo (n = 50) and screened using an 18S quantitative PCR (qPCR). Positives were typed by sequence analysis of 18S nested PCR products. The qPCR prevalence of Cryptosporidium species in fa ...
DOI:
10.1007/s00436-016-4901-0

11. Molecular epidemiology of Cryptosporidium species in livestock in Ireland

Author:
Mirhashemi, Marzieh Ezzaty; Zintl, Annetta; Grant, Tim; Lucy, Frances; Mulcahy, Grace; Waal, Theo De
Source:
Veterinary parasitology 2016 v.216 pp. 18-22
ISSN:
0304-4017
Subject:
Cryptosporidium bovis,   etc   ; Cryptosporidium andersoni; Cryptosporidium parvum; Cryptosporidium ryanae; Protozoa; cattle; cryptosporidiosis; diarrhea; farms; genotype; horses; hosts; molecular epidemiology; sheep; spring; summer; swine; watersheds; Ireland;     Show all 19 Subjects
Abstract:
... Cryptosporidium is a protozoan that can cause gastro-intestinal illness with diarrhoea in a wide range of hosts. In fact some species of Cryptosporidium can infect the broad range of hosts. The current paper is focused to investigate monthly prevalence and diversity of Cryptosporidium spp. during the spring and early summer (March–June) in 2009 and 2010 in farms with no history of cryptosporidiosi ...
DOI:
10.1016/j.vetpar.2015.12.002

12. Distribution of Cryptosporidium species in Tibetan sheep and yaks in Qinghai, China

Author:
Li, Pei; Cai, Jinzhong; Cai, Min; Wu, Wenxian; Li, Chunhua; Lei, Mengtong; Xu, Hailing; Feng, Lijun; Ma, Jiawen; Feng, Yaoyu; Xiao, Lihua
Source:
Veterinary parasitology 2016 v.215 pp. 58-62
ISSN:
0304-4017
Subject:
Cryptosporidium bovis,   etc   ; Cryptosporidium andersoni; Cryptosporidium ryanae; buffaloes; cattle; cold; feces; free range husbandry; habitats; oxygen; polymerase chain reaction; sequence analysis; sheep; ultraviolet radiation; yaks; China;     Show all 16 Subjects
Abstract:
... Few data are available on the distribution of Cryptosporidium species in Tibetan sheep and yaks, which are free-range animals living in a cold, low oxygen, and high ultraviolet radiation habitat. In this study, 904 fecal specimens were collected from 350 Tibetan sheep and 554 yaks in six counties. Cryptosporidium spp. were detected and differentiated by PCR and sequence analyses. Altogether, 43 (1 ...
DOI:
10.1016/j.vetpar.2015.11.009

13. Cryptosporidium infections in suckler herd beef calves

Author:
BJÖRKMAN, C.; LINDSTRÖM, L.; OWESON, C.; AHOLA, H.; TROELL, K.; AXÉN, C.
Source:
Parasitology 2015 v.142 no.8 pp. 1108-1114
ISSN:
1469-8161
Subject:
Cryptosporidium bovis,   etc   ; Cryptosporidium parvum; Cryptosporidium ryanae; beef cattle; calves; calving; cleaning; clinical examination; cows; feces; genes; herds; information management; microscopy; oocysts; questionnaires; regression analysis; ribosomal RNA; Sweden;     Show all 19 Subjects
Abstract:
... A study was carried out to investigate how common Cryptosporidium infections are in beef calves in Swedish suckler herds and to explore which species and subtypes that occur. We further aimed at identifying factors associated with shedding of Cryptosporidium oocysts in this type of calf management. The study was conducted in two regions in Sweden and included 30 herds. Faecal samples were collecte ...
DOI:
10.1017/S0031182015000426
PubMed:
25899555
PubMed Central:
PMC4453919

14. Is there a need for improved Cryptosporidium diagnostics in Swedish calves?

Author:
Silverlås, C.; Bosaeus-Reineck, H.; Näslund, K.; Björkman, C.
Source:
International journal for parasitology 2013 v.43 pp. 155-161
ISSN:
0020-7519
Subject:
Cryptosporidium bovis,   etc   ; Cryptosporidium parvum; calves; color; cryptosporidiosis; diarrhea; feces; herds; microscopy; pathogens; Sweden;     Show all 11 Subjects
Abstract:
... Cryptosporidium parvum is a common pathogen in preweaned calves but in Sweden Cryptosporidium bovis, which is considered apathogenic, is the most common species in this age group and it has been identified in diarrhoeal samples, indicating that it could be a cause of diarrhoea. In routine diagnostic procedures, infection is determined by microscopy, which is not sufficient to differentiate these s ...
DOI:
10.1016/j.ijpara.2012.10.009
PubMed:
23142404

15. Prevalence and molecular typing of Cryptosporidium in dairy cattle in England and Wales and examination of potential on-farm transmission routes

Author:
Smith, R.P.; Clifton-Hadley, F.A.; Cheney, T.; Giles, M.
Source:
Veterinary parasitology 2014 v.204 no.3-4 pp. 111-119
ISSN:
0304-4017
Subject:
Cryptosporidium bovis,   etc   ; Cryptosporidium andersoni; Cryptosporidium parvum; adults; agricultural wastes; birds; calves; dairy cattle; dairy farming; farms; humans; indirect contact; microscopy; oocysts; pastures; rodents; sheep; slurries; wildlife; England; Wales;     Show all 21 Subjects
Abstract:
... An average of 70 samples were collected from 80 dairy farms in England and Wales, from cattle, co-grazed sheep, wildlife and farm wastes, to investigate prevalence, potential sources and transmission routes of Cryptosporidium. At least one positive sample was detected on 74 of the farms (92.5%) by IFAT microscopy. The prevalence in cattle was 10.2% (95% CI 9.4–11.1%), with greater prevalences dete ...
DOI:
10.1016/j.vetpar.2014.05.022

16. Prevalence and molecular characterization of Cryptosporidium spp. in dairy cattle, northwest China

Author:
Zhang, Xiao-Xuan; Tan, Qi-Dong; Zhou, Dong-Hui; Ni, Xiao-Ting; Liu, Guang-Xue; Yang, Yan-Chuan; Zhu, Xing-Quan
Source:
Parasitology research 2015 v.114 no.7 pp. 2781-2787
ISSN:
0932-0113
Subject:
Cryptosporidium bovis,   etc   ; Cryptosporidium andersoni; Cryptosporidium parvum; Cryptosporidium ryanae; DNA; dairy cattle; digestive system diseases; feces; genes; humans; nucleotide sequences; polymerase chain reaction; ribosomal RNA; sequence analysis; species identification; China;     Show all 16 Subjects
Abstract:
... Cryptosporidium spp. cause enteric diseases in a wide range of animals, including dairy cattle. However, limited information is available regarding prevalence and molecular characterization of Cryptosporidium spp. in dairy cattle in Gansu province and Ningxia Hui Autonomous Region (NXHAR), northwest China. A total of 2945 dairy feces samples (1257 from Gansu province and 1688 from NXHAR) were coll ...
DOI:
10.1007/s00436-015-4537-5

17. Occurrence and molecular characterization of Cryptosporidium spp. and Enterocytozoon bieneusi in dairy cattle, beef cattle and water buffaloes in China

Author:
Ma, Jingbo; Li, Pei; Zhao, Xiaoping; Xu, Hailing; Wu, Wenxian; Wang, Yuanfei; Guo, Yaqiong; Wang, Lin; Feng, Yaoyu; Xiao, Lihua
Source:
Veterinary parasitology 2015 v.207 no.3-4 pp. 220-227
ISSN:
0304-4017
Subject:
Cryptosporidium bovis,   etc   ; Cryptosporidium andersoni; Cryptosporidium ryanae; Enterocytozoon; beef cattle; buffaloes; dairy cattle; diarrhea; farms; feces; genes; genotype; hosts; humans; internal transcribed spacers; mixed infection; polymerase chain reaction; protists; ribosomal RNA; sequence analysis; yaks; zoonoses; China;     Show all 23 Subjects
Abstract:
... Cryptosporidium spp. and Enterocytozoon bieneusi are important protists in a wide range of vertebrate hosts, causing diarrheal diseases. Cattle are considered potential reservoirs of Cryptosporidium infection in humans, although their role in the transmission of E. bieneusi is not clear. In the present work, 793 fecal specimens from dairy cattle, native beef cattle, and water buffaloes on 11 farms ...
DOI:
10.1016/j.vetpar.2014.10.011

18. First molecular characterisation of Cryptosporidium and Giardia from Bubalus bubalis (water buffalo) in Victoria, Australia

Author:
Abeywardena, Harshanie; Jex, Aaron R.; von Samson-Himmelstjerna, Georg; Haydon, Shane R.; Stevens, Melita A.; Gasser, Robin B.
Source:
Infection, genetics, and evolution 2013 v.20 pp. 96-102
ISSN:
1567-1348
Subject:
Cryptosporidium bovis,   etc   ; Cryptosporidium parvum; Giardia lamblia; buffaloes; farms; feces; genes; genotype; humans; mutation; pathogens; polymerase chain reaction; ribosomal RNA; surveys; triose-phosphate isomerase; Victoria (Australia);     Show all 16 Subjects
Abstract:
... We conducted a molecular epidemiological survey of Cryptosporidium and Giardia from Bubalus bubalis (water buffalo) on two extensive farms (450km apart) in Victoria, Australia. Faecal samples (n=476) were collected from different age groups of water buffalo at two time points (six months apart) and tested using a PCR-based mutation scanning-targeted sequencing-phylogenetic approach, employing mark ...
DOI:
10.1016/j.meegid.2013.07.019
PubMed:
23886616

19. The first report of Cryptosporidium bovis, C. ryanae and Giardia duodenalis sub-assemblage A-II in roe deer (Capreolus capreolus) in Spain

Author:
García-Presedo, Ignacio; Pedraza-Díaz, Susana; González-Warleta, Marta; Mezo, Mercedes; Gómez-Bautista, Mercedes; Ortega-Mora, Luis Miguel; Castro-Hermida, José Antonio
Source:
Veterinary parasitology 2013 v.197 no.3-4 pp. 658-664
ISSN:
0304-4017
Subject:
Cryptosporidium bovis,   etc   ; Capreolus capreolus; Giardia lamblia; adults; enteropathogens; feces; fluorescence microscopy; genes; genotype; giardin protein; habitats; humans; oocysts; parasites; polymerase chain reaction; preserves; ribosomal RNA; Spain;     Show all 18 Subjects
Abstract:
... The aim of the present study was to identify the species and/or genotypes of Cryptosporidium and Giardia duodenalis infecting roe deer (Capreolus capreolus) in Galicia (NW Spain). The presence of both enteropathogens was investigated in 212 faecal samples from roe deer shot in diverse game preserves in three different areas of Galicia. The samples were analyzed by immunofluorescence microscopy and ...
DOI:
10.1016/j.vetpar.2013.07.002
PubMed:
23890824

20. Molecular characterization of Cryptosporidium isolates from high-excreting young dairy calves in dairy cattle herds in Western France

Author:
Rieux, A.; Chartier, C.; Pors, I.; Delafosse, A.; Paraud, C.
Source:
Parasitology research 2013 v.112 no.10 pp. 3423-3431
ISSN:
0932-0113
Subject:
Cryptosporidium bovis,   etc   ; Cryptosporidium parvum; alleles; dairy calves; excretion; farms; feces; genotyping; herds; loci; oocysts; polymerase chain reaction; ribosomal RNA; sequence analysis; France;     Show all 15 Subjects
Abstract:
... Ninety-two Cryptosporidium sp.-positive fecal samples of dairy diarrheic or non-diarrheic calves from 30 cattle herds in Normandy (France) were selected. Here, the aim was to investigate the species of Cryptosporidium excreted as well as the subtypes of Cryptosporidium parvum found in 7-17-day-old dairy calves. Excretion levels were comprised between 2 × 10(4) and 4 × 10(7) oocysts per gram of fec ...
DOI:
10.1007/s00436-013-3520-2
PubMed:
23820609