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ARS Home » Midwest Area » Ames, Iowa » National Animal Disease Center » Ruminant Diseases and Immunology Research » Research » Publications at this Location » Publication #332995
Title: Serological evidence of Hobi-like virus circulation in Argentinean water buffalo

Author
item PECORA, ANDREA - National Institute Of Agricultural Technology(INTA)
item PEREZ-A, MARIA - National Institute Of Agricultural Technology(INTA)
item MALACARI, DARIO - National Institute Of Agricultural Technology(INTA)
item ZABAL, OSVALDO - National Institute Of Agricultural Technology(INTA)
item SALA, JUAN - National Institute Of Agricultural Technology(INTA)
item KONRAD, JOSE - National University Of Argentina
item CASPE, SERGIO - National Institute Of Agricultural Technology(INTA)
item BAUERMANN, FERNANDO - South Dakota State University
item Ridpath, Julia
item DUS SANTOS, MARIA - National Institute Of Agricultural Technology(INTA)

Submitted to: Journal of Veterinary Diagnostic Investigation
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 6/16/2017
Publication Date: 7/5/2017
Publication URL: http://handle.nal.usda.gov/10113/5763052
Citation: Pecora, A., Perez-A, M.S., Malacari, D.A., Zabal, O., Sala, J.M., Konrad, J.L., Caspe, S.G., Bauermann, F.V., Ridpath, J.F., Dus Santos, M.J. 2017. Serological evidence of Hobi-like virus circulation in Argentinean water buffalo. Journal of Veterinary Diagnostic Investigation. 1(4). doi: 10.1177/1040638717720246.

Interpretive Summary: HoBi-like viruses are a newly recognized group of viruses that infect cattle and cause respiratory and reproductive problems. This group of viruses also infect water buffalo. Researchers are trying to determine which regions of the world have HoBi-like viruses. Previous studies have shown that HoBi-like viruses can be found in Italy, Bangladesh, India, Thailand and Brazil. This study was a survey of water buffalo from Argentina. It was found that about half the water buffalo samples examined showed evidence of exposure to HoBi-like viruses. This information is important because it can be used in the design of global control programs for HoBi-like viruses.

Technical Abstract: Hobi-like pestiviruses (also known as bovine viral diarrhea virus 3) have been sporadically reported from naturally infected cattle in Brazil, Asia and Europe. Although Hobi-like viruses seem to be endemic in Brazilian bovines and buffalo, they have not been studied in the other countries of South America. Here we report serological results of buffalo from 12 large farms in Argentina located near Brazilian border. These buffalo were not vaccinated against pestiviruses. Our results indicate that Hobi-like virus may be circulating in the North-eastern region of Argentina since half of the analyzed animals showed high levels of neutralizing antibodies against that pestivirus. The Hobi-like seropositive animals were also checked for neutralizing antibodies against BVDV-1a, BVDV-1b and BVDV-2, and in most cases these animals showed low levels or no detectable antibodies against these other pestiviruses. This study suggests a need for continued pestivirus surveillance in Argentinean bovines and buffalos.