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.

中文翻译：

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牛和猪生肝中的戊型肝炎病毒鉴定。

包括猪在内的几种动物物种直接参与了戊型肝炎病毒（HEV）向人的人畜共患性传播。这项研究是通过嵌套逆转录-聚合酶链反应检测牛和猪生肝中的戊型肝炎病毒。在被检牛肝和猪肝中分别鉴定出人畜共患HEV株。在牛肝中检测到HEV-4，但在猪肝中均检测到HEV-3和HEV-4。这些结果表明，戊型肝炎病毒的人畜共患性传播可能是通过食用猪和牛的生的或未煮熟的肝脏而发生的。