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Detection and genetic analysis of zoonotic hepatitis E virus, rotavirus, and sapovirus in pigs
Lyoo, Eu Lim,Park, Byung-Joo,Ahn, Hee-Seop,Han, Sang-Hoon,Go, Hyeon-Jeong,Kim, Dong-Hwi,Lee, Joong-Bok,Park, Seung-Yong,Song, Chang-Seon,Lee, Sang-Won,Choi, In-Soo The Korean Society of Veterinary Science 2020 大韓獸醫學會誌 Vol.60 No.2
The zoonotic transmission of viral diseases to humans is a serious public health concern. Pigs are frequently a major reservoir for several zoonotic viral diseases. Therefore, periodic surveillance is needed to determine the infection rates of zoonotic diseases in domestic pigs. Hepatitis E virus (HEV), rotavirus, sapovirus (SaV), and norovirus (NoV) are potential zoonotic viruses. In this study, 296 fecal samples were collected from weaned piglets and growing pigs in 13 swine farms, and the viral RNA was extracted. Partial viral genomes were amplified by reverse transcription-polymerase chain reaction (PCR) or nested-PCR using virus-specific primer sets under different PCR conditions. HEV-3, rotavirus A, and SaV genogoup 3 were detected from 11.5, 2.7, and 3.0% of the samples, respectively. On the other hand, NoV was not detected in any of the samples. Genetic analysis indicated that the nucleotide sequences of swine HEV-3 and rotavirus A detected in this study were closely related to those of human isolates. However, swine SaV was distant from the human strains. These results suggest that HEV-3 and rotavirus A can be transmitted from pigs to humans. Therefore, strict preventive measures should be implemented by workers in the swine industry to prevent infections with HEV-3 and rotavirus A excreted from pigs.
Identification of Hepatitis E Virus in Bovine and Porcine Raw Livers
( Hyeon-jeong Go ),( Byung-joo Park ),( Hee-seop Ahn ),( Eu-lim Lyoo ),( Dong-hwi Kim ),( Joong-bok Lee ),( Seung-yong Park ),( Chang-seon Song ),( Sang-won Lee ),( In-soo Choi ) 한국미생물 · 생명공학회 2019 Journal of microbiology and biotechnology Vol.29 No.12
Several animal species including pigs are directly involved in the zoonotic transmission of the hepatitis E virus (HEV) to humans. This study was conducted to detect HEV in bovine and porcine raw livers by nested reverse transcription-polymerase chain reaction. Zoonotic HEV strains were identified in 1.0 and 3.0% of the tested bovine and porcine livers, respectively. HEV-4 was detected in the bovine livers, but both HEV-3 and HEV-4 were identified in the porcine livers. These results indicate that zoonotic transmission of HEV may occur via consumption of raw or undercooked livers of pigs and cattle.