Ellen G. Murphy
First detection of Hepatitis E virus (Orthohepevirus C) in wild brown rats ( Rattus norvegicus ) from Great Britain
Murphy, Ellen G.; Williams, Nicola J.; Jennings, Daisy; Chantrey, Julian; Verin, Ranieri; Grierson, Sylvia; McElhinney, Lorraine M.; Bennett, Malcolm
Authors
Nicola J. Williams
Daisy Jennings
Julian Chantrey
Ranieri Verin
Sylvia Grierson
Lorraine M. McElhinney
Professor MALCOLM BENNETT M.BENNETT@NOTTINGHAM.AC.UK
Professor of Zoonotic and Emerging Disease
Abstract
In the United Kingdom, there has been an increase in the number of hepatitis E virus (HEV) infections in people annually since 2010. Most of these are thought to be indigenously acquired Orthohepevirus A genotype 3 (HEV G3), which has been linked to pork production and consumption. However, the dominant subgroup circulating in British pigs differs from that which is found in people; therefore, an alternative, potentially zoonotic, source is suspected as a possible cause of these infections. Rodents, brown rats (Rattus norvegicus) in particular, have been shown to carry HEV, both the swine HEV G3 genotype and Orthohepevirus C, genotype C1 (rat HEV). To investigate the prevalence of HEV in British rodents, liver tissue was taken from 307 rodents collected from pig farms (n = 12) and other locations (n = 10). The RNA from these samples was extracted and tested using a pan‐HEV nested RT‐PCR. Limited histopathology was also performed. In this study, 8/61 (13%, 95% CI, 5–21) of brown rat livers were positive for HEV RNA. Sequencing of amplicons demonstrated all infections to be rat HEV with 87%–92% nucleotide identity to other rat HEV sequences circulating within Europe and China (224 nt ORF‐1). Lesions and necrosis were observed histologically in 2/3 samples examined. No rat HEV RNA was detected in any other species, and no HEV G3 RNA was detected in any rodent in this study. This is the first reported detection of rat HEV in Great Britain. A human case of rat HEV infection has recently been reported in Asia, suggesting that rat HEV could pose a risk to public health.
Citation
Murphy, E. G., Williams, N. J., Jennings, D., Chantrey, J., Verin, R., Grierson, S., …Bennett, M. (2019). First detection of Hepatitis E virus (Orthohepevirus C) in wild brown rats ( Rattus norvegicus ) from Great Britain. Zoonoses and Public Health, 66(6), 686-694. https://doi.org/10.1111/zph.12581
Journal Article Type | Article |
---|---|
Acceptance Date | Apr 6, 2019 |
Online Publication Date | Apr 29, 2019 |
Publication Date | Apr 29, 2019 |
Deposit Date | Apr 29, 2019 |
Publicly Available Date | May 3, 2019 |
Journal | Zoonoses and Public Health |
Print ISSN | 1863-1959 |
Electronic ISSN | 1863-2378 |
Publisher | Wiley |
Peer Reviewed | Peer Reviewed |
Volume | 66 |
Issue | 6 |
Pages | 686-694 |
DOI | https://doi.org/10.1111/zph.12581 |
Public URL | https://nottingham-repository.worktribe.com/output/1845161 |
Publisher URL | https://onlinelibrary.wiley.com/doi/full/10.1111/zph.12581 |
Contract Date | May 3, 2019 |
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First detection of Hepatitis E virus (Orthohepevirus C) in wild brown rats (Rattus norvegicus) from Great Britain
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