Peer-reviewed veterinary case report
Hepatitis E virus genotype 3 in wild rats, United States.
- Journal:
- Emerging infectious diseases
- Year:
- 2012
- Authors:
- Lack, Justin B et al.
- Affiliation:
- Department of Zoology · United States
- Species:
- rodent
Abstract
The role of rodents in the epidemiology of zoonotic hepatitis E virus (HEV) infection has been a subject of considerable debate. Seroprevalence studies suggest widespread HEV infection in commensal Rattus spp. rats, but experimental transmission has been largely unsuccessful and recovery of zoonotic genotype 3 HEV RNA from wild Rattus spp. rats has never been confirmed. We surveyed R. rattus and R. norvegicus rats from across the United States and several international populations by using a hemi-nested reverse transcription PCR approach. We isolated HEV RNA in liver tissues from 35 of 446 rats examined. All but 1 of these isolates was relegated to the zoonotic HEV genotype 3, and the remaining sequence represented the recently discovered rat genotype from the United States and Germany. HEV-positive rats were detected in urban and remote localities. Genetic analyses suggest all HEV genotype 3 isolates obtained from wild Rattus spp. rats were closely related.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/22840202/