New Parvovirus Associated with Serum Hepatitis in Horses after Inoculation of Common Biological Product.
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| Abstract |
Equine serum hepatitis (i.e., Theiler's disease) is a serious and often life-threatening disease of unknown etiology that affects horses. A horse in Nebraska, USA, with serum hepatitis died 65 days after treatment with equine-origin tetanus antitoxin. We identified an unknown parvovirus in serum and liver of the dead horse and in the administered antitoxin. The equine parvovirus-hepatitis (EqPV-H) shares <50% protein identity with its phylogenetic relatives of the genus Copiparvovirus. Next, we experimentally infected 2 horses using a tetanus antitoxin contaminated with EqPV-H. Viremia developed, the horses seroconverted, and acute hepatitis developed that was confirmed by clinical, biochemical, and histopathologic testing. We also determined that EqPV-H is an endemic infection because, in a cohort of 100 clinically normal adult horses, 13 were viremic and 15 were seropositive. We identified a new virus associated with equine serum hepatitis and confirmed its pathogenicity and transmissibility through contaminated biological products.
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| Authors | Thomas J Divers, Bud C Tennant, Arvind Kumar, Sean McDonough, John Cullen, Nishit Bhuva, Komal Jain, Lokendra Singh Chauhan, Troels Kasper Høyer Scheel, W Ian Lipkin, Melissa Laverack, Sheetal Trivedi, Satyapramod Srinivasa, Laurie Beard, Charles M Rice, Peter D Burbelo, Randall W Renshaw, Edward Dubovi, Amit Kapoor |
| Journal | Emerging infectious diseases (Emerg Infect Dis) Vol. 24 Issue 2 Pg. 303-310 (02 2018) ISSN: 1080-6059 [Electronic] United States |
| PMID | 29350162 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't, Research Support, U.S. Gov't, Non-P.H.S.) |
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