这个词是什么意思？
An unassigned genus of RNA viruses with a single officially described species, HEPATITIS E VIRUS. A distantly related virus, Avian hepatitis E virus, has been listed as a tentative species. Strains have also been identified in swine.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D052678 · MeSH 2026。
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