Detection of Hepatitis E Virus RNA from Pig Bile Collected at a Slaughterhouse in Japan

Overview

Journal AIMS Microbiol

Specialty Microbiology

Date 2023 Jan 25

PMID 36694587

Authors

Masashi Uema

Kenzo Yonemitsu

Yoshimasa Sasaki

Hiroshi Asakura

Affiliations

Soon will be listed here.

Abstract

Hepatitis E virus (HEV) is a zoonotic pathogen that circulates mainly between pigs and humans. In Japan, the number of confirmed HEV cases has increased over the past decade, with the majority reported as domestic HEV infections. HEV-infected pork products may be associated with this increase, but there is limited information on HEV in pork in Japanese markets. From February to March 2020, gallbladders were collected from 200 slaughtered pigs shipped from 14 farms and were surveyed to detect HEV RNA in bile using reverse transcription quantitative polymerase chain reaction. The samples were then sequenced and genotyped. Twenty pigs were positive for HEV ribonucleic acid, and seven samples had Ct values of less than 30. Among these 20 pigs, virus strains from 14 pigs were determined as genotype 3. This report indicated that HEV-contaminated pork liver was shipped to consumer markets and demonstrated the importance of detection of HEV in meat ready for shipment.

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