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Molecular and antigenic characterization of bovine Coronavirus circulating in Argentinean cattle during 1994–2010

Resumen
Bovine coronavirus (BCoV) is an important viral pathogen associated with neonatal calf diarrhea. Our aim was to investigate the incidence of BCoV in diarrhea outbreaks in beef and dairy herds from Argentina during 1994–2010. A total of 5.365 fecal samples from diarrheic calves were screened for BCoV diagnosis by ELISA. The virus was detected in 1.71% (92/5365) of the samples corresponding to 5.95% (63/1058) of the diarrhea cases in 239 beef and 324 dairy [ver mas...]
Bovine coronavirus (BCoV) is an important viral pathogen associated with neonatal calf diarrhea. Our aim was to investigate the incidence of BCoV in diarrhea outbreaks in beef and dairy herds from Argentina during 1994–2010. A total of 5.365 fecal samples from diarrheic calves were screened for BCoV diagnosis by ELISA. The virus was detected in 1.71% (92/5365) of the samples corresponding to 5.95% (63/1058) of the diarrhea cases in 239 beef and 324 dairy farms. The detection rate of BCoV was significantly higher in dairy than in beef herds: 12.13% (29/239) vs. 4.32% (14/324) respectively. Phylogenetic analysis of the hypervariable S1 region of seven representative samples (from different husbandry systems, farm locations and years of sampling) indicated that BCoV strains circulating in Argentinean beef and dairy herds formed a cluster distinct from other geographical regions. Interestingly, Argentinean strains are distantly related (at both the nucleotide and amino acid levels) with the Mebus historic reference BCoV strain included in the vaccines currently available in Argentina. However, Mebus-induced antibodies were capable of neutralizing the BCoV Arg95, a field strain adapted to grow in vitro, and vice versa, indicating that both strains belong to the same CoV serotype reported in cattle. This work represents the first large survey describing BCoV circulation in Argentinean cattle [Cerrar]
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Autor
Bok, Marina;   Miño, Samuel;   Rodriguez, Daniela;   Badaracco, Alejandra;   Nuñes, I.;   Souza, Sibele P.;   Bilbao, G.;   Louge Uriarte, Enrique Leopoldo;   Galarza, Roxana Ivon;   Vega, Celina Guadalupe;   Odeon, Anselmo Carlos;   Saif, LInda J.;   Parreño, Gladys Viviana;  
Fuente
Veterinary microbiology 181 (3–4) : 221-229. (31 December 2015)
Fecha
2015-12
Editorial
Elsevier
ISSN
0378-1135
URI
http://hdl.handle.net/20.500.12123/4591
https://www.sciencedirect.com/science/article/pii/S0378113515300523?via%3Dihub
DOI
https://doi.org/10.1016/j.vetmic.2015.10.017
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pdf
Tipo de documento
artículo
Palabras Claves
Coronavirus; Ganado Bovino; Cattle; Bovine Viral Diarrhoea; Diarrea Viral Bovina; Argentina; Neonatal Calf Diarrhea;
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Excepto donde se diga explicitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
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