HIV入侵机体后,免疫系统分泌的特异性HIV抗体,是最常用的HIV筛查、确证指标,一般在感染后3周左右可被检测到。1984年,Schupbach等[1]人研制的免疫印迹法,观察到在艾滋病病毒感染的不同阶段,WB条带的数量、强度和出现顺序都会随之变化。
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