在免疫功能缺陷的患者，多瘤病毒可对健康造成严重威胁。
In patients with immune deficiencies, polyoma viruses can pose serious health threats.
其他以前确定的多瘤病毒普遍存在于一般民众，通常无症状。
Other previously identified polyoma viruses are widespread in the general population, where they typically produce no symptoms.
此前多瘤病毒的名称来源于首次发现病毒感染的患者姓名缩写。
Polyoma viruses previously have been named after the initials of the patient in whom they were first discovered.
多瘤病毒：存在于野鼠身上、数量极少、致病力不强的一种感染性小病原体。
Polyoma virus: Minute infectious agent normally present in extremely small amounts in wild mice without causing obvious ill effects.
多瘤病毒：存在于野鼠身上、数量极少、致病力不强的一种感染性小病原体。
Polyoma virus: Minute infectious agent normally present in extremely small amounts in wild mice without causing obvious ill effects.
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