接受了从阿肯色州囚犯身上提取的被污染血浆的加拿大人中，有1，000多名被感染了艾滋病病毒，20，000多人被感染了乙型肝炎病毒。
More than 1,000 Canadians who received plasma contaminated by that drawn from Arkansas prisoners were infected with HIV and 20,000 with hepatitis C.
T淋巴细胞在熟悉别异物上饰演一个关头脚色，它可以识别细菌、病毒、寄生生物或者是肿瘤细胞。
T cells play a key role in recognising foreign "invaders" such as bacteria, viruses, parasites, or tumour cells.
三色染色显示病毒性肝炎时肝实质塌陷。
This trichrome stain demonstrates the collapse of the liver parenchyma with viral hepatitis.
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