ArticleBMC veterinary research2019
High prevalence of hepatitis E virus infection among domestic pigs in Ibaraki Prefecture, Japan.
Article in BMC veterinary research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 22 citations in OpenAlex.
- Investigation of Hepatitis E virus seroprevalence in fattening pigs in Taiwan.Frontiers in veterinary science · 2026Article
- Article
- Assessment on the efficacy of methods 2 to 5 and method 7 set out in Commission Regulation (EU) No 142/2011 to inactivate relevant pathogens when producing processed animal protein of porcine origin intended to feed poultry and aquaculture animals.EFSA journal. European Food Safety Authority · 2023Article
- Molecular Characterization and Phylogenetic Analysis of Hepatitis E Virus (HEV) Strains from Pigs Farmed in Eight European Countries between 2020 and 2022.Transboundary and emerging diseases · 2023Article
- Hepatitis E virus in pigs and the environment: An updated review of public health concerns.Narra J · 2022Review
- Nationwide survey of hepatitis E virus infection among wildlife in Japan.The Journal of veterinary medical science · 2022Article
- Infection dynamics and persistence of hepatitis E virus on pig farms - a review.Porcine health management · 2021Review
- Evaluation of High-Pressure Processing in Inactivation of the Hepatitis E Virus.Frontiers in microbiology · 2020Article
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Authors and funding
9 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundHepatitis E virus (HEV) is prevalent in pigs and may serve as a reservoir for human infection. However, data on HEV infections in pigs in Ibaraki Prefecture, Japan, are limited. Here, we clarified the process and course of HEV in naturally infected pigs. Serum (n = 160) and liver (n = 110) samples were collected from pigs at the slaughterhouse. Furthermore, serum samples were collected from 45 breeding sows and serum and feces samples were collected from 7 piglets once a week (raised until 166 days of age). HEV antigen and antibodies were evaluated, and the genotype was identified based on molecular phylogenetic tree analysis.
resultsThe samples collected from the slaughterhouse revealed that few pigs were HEV carriers but most possessed anti-HEV antibodies. Most breeding sows possessed antibodies, and the piglets excreted HEV on the farm at approximately 10 weeks of age. One pig was initially infected, and in a few weeks, the other pigs living in the same sty became infected.
conclusionsMost pigs in Ibaraki Prefecture were with HEV. On the farm, most piglets were infected with HEV by the time they reached slaughter age. We confirmed that HEV infection is successively transmitted among piglets living in the same sty.
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