ArticleTransboundary and emerging diseases2019
Hepatitis E virus strains infecting Swedish domestic pigs are unique for each pig farm and remain in the farm for at least 2 years.
Article in Transboundary and emerging diseases, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed.
- Distinct distribution of HEV-3 subtypes across humans, animals, and environmental waters in Sweden.Emerging microbes & infections · 2025Article
- Hepatitis E Virus RNA Detection in Liver and Muscle Tissues Sampled from Home Slaughtered Domestic Pigs in Central Italy.Food and environmental virology · 2024Article
- High prevalence of hepatitis E and rat hepatitis E viruses in wastewater in Gothenburg, Sweden.One health (Amsterdam, Netherlands) · 2024Article
- Hepatitis E and Potential Public Health Implications from a One-Health Perspective: Special Focus on the European Wild Boar (Pathogens (Basel, Switzerland) · 2024Review
- Biosecurity measures to control hepatitis E virus on European pig farms.Frontiers in veterinary science · 2024Article
- Review
- 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
- Geographic and Temporal Variability of Hepatitis E Virus Circulation in the Russian Federation.Viruses · 2022Article
- Low prevalence of hepatitis E virus in the liver of Corsican pigs slaughtered after 12 months despite high antibody seroprevalence.Transboundary and emerging diseases · 2022Article
- Dynamic of Hepatitis E Virus (HEV) Shedding in Pigs.Animals : an open access journal from MDPI · 2022Article
- Global molecular diversity of Hepatitis E virus in wild boar and domestic pig.One health (Amsterdam, Netherlands) · 2021Article
- Screening of Swiss Pig Herds for Hepatitis E Virus: A Pilot Study.Animals : an open access journal from MDPI · 2021Article
- Infection dynamics and persistence of hepatitis E virus on pig farms - a review.Porcine health management · 2021Review
- Advanced Research in Porcine Reproductive and Respiratory Syndrome Virus Co-infection With Other Pathogens in Swine.Frontiers in veterinary science · 2021Review
- Variations among Viruses in Influent Water and Effluent Water at a Wastewater Plant over One Year as Assessed by Quantitative PCR and Metagenomics.Applied and environmental microbiology · 2020Article
- Hepatitis E virus strains infecting Swedish domestic pigs are unique for each pig farm and remain in the farm for at least 2 years.Transboundary and emerging diseases · 2019Article
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5 authors.
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Abstract
Hepatitis E virus (HEV) genotype 3 (HEV3) is distributed globally and infects both humans and animals, mainly domestic pigs and wild boars, which are the major reservoirs. In this study, the prevalence of HEV among Swedish pigs was investigated by HEV RNA analysis in 363 faecal samples from 3-month-old piglets sampled twice (2013 and 2014) in 30 Swedish pig farms. Four different types of farms were investigated; organic, conventional closed (keeping the sow), satellites in a sow pool (conventional farms sharing sows) and conventional non-closed farms (purchasing gilts). More than two-thirds (77%) of the farms had HEV-infected pigs. HEV RNA was found in faeces from 79 pigs (22%). Partial ORF1 could be sequenced in 46 strains. Phylogenetic analysis revealed a unique HEV3 strain for each farm. Strains sampled more than a year apart from the same farm were closely related, indicating that the same HEV strain is present for several years on the farm. Despite that only 4% of the Swedish pig farms were investigated, two farms had strains similar to those from humans, another had strains similar to wild boar HEV. The uniqueness of strains from each farm indicates a possibility to identify a source of infection down to farm level. This knowledge may be used by the farms to investigate the effectiveness of good hygiene routines to reduce the amount of HEV and thus the infection risk in the farm, and for Swedish public health authorities to identify cases of HEV transmissions from consumption of uncooked pork.
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