First Clinical Case of Equine Parvovirus-Hepatitis-Related Theiler's Disease in Asia

Equine parvovirus-hepatitis (EqPV-H) is a newly identified etiologic agent of Theiler's disease (TD). We present a case of EqPV-H-related fulminant hepatitis in a 14-year-old thoroughbred mare in Korea. The mare had acute hepatopathy and gastrointestinal symptoms, with abnormal liver-related bl...

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Bibliographic Details
Published in:Viruses 2021-09, Vol.13 (10), p.1917
Main Authors: Yoon, Jungho, Park, Taemook, Kim, Ahram, Park, Jongyoung, Park, Byung-Joo, Ahn, Hee-Seop, Go, Hyeon-Jeong, Kim, Dong-Hwi, Jung, Soontag, Seo, Yeeun, Lee, Joong-Bok, Park, Seung-Yong, Song, Chang-Seon, Lee, Sang-Won, Choi, In-Soo
Format: Article
Language:English
Subjects:
Animals
Asia
Bile ducts
Biopsy
Biotechnology
Blood
Body temperature
Communication
Enterovirus Infections - virology
Epithelium
equine parvovirus
Female
Genetic analysis
Hepatitis
Hepatitis, Viral, Animal - virology
Hepatocytes
Hepatocytes - pathology
Horse Diseases - virology
Horses
Hybridization
in situ hybridization
Infections
Kupffer cells
Laparotomy
Liver
Liver - pathology
Liver diseases
Maximum likelihood method
NS1 protein
Parvoviridae Infections - veterinary
Parvoviridae Infections - virology
Parvovirinae - classification
Parvovirus
Parvoviruses
Phylogenetics
Phylogeny
Polymerase Chain Reaction
Republic of Korea
Theiler’s disease
Virus Shedding
Viruses
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Summary:Equine parvovirus-hepatitis (EqPV-H) is a newly identified etiologic agent of Theiler's disease (TD). We present a case of EqPV-H-related fulminant hepatitis in a 14-year-old thoroughbred mare in Korea. The mare had acute hepatopathy and gastrointestinal symptoms, with abnormal liver-related blood parameters. The horse was born in the USA and imported to Korea in 2017, with no history of administration of equine biological products after entry into Korea. The horse was diagnosed with EqPV-H-associated hepatitis after abdominal ultrasonography, laparotomy, and nested polymerase chain reaction (PCR) and in situ hybridization (ISH) assays. The serum, nasal swab, oral swab, and liver biopsy were positive for EqPV-H according to the PCR assay. Genetic analysis of the partial NS1 gene of EqPV-H showed a unique nucleotide substitution, distinct from that in previously deposited strains. EqPV-H DNA was found not only in hepatocytes but also in bile duct epithelium and Kupffer cells, particularly via ISH. To the best of our knowledge, this is the first case of EqPV-H-associated TD in Asia, providing the first clinical evidence for viral shedding from the mouth and nose, and identification of EqPV-H in the liver. This study contributes to a better understanding of the pathological features of EqPV-H-associated TD.
ISSN:1999-4915
1999-4915
DOI:10.3390/v13101917