我相信3周论。
Window period What is the "window-period" and how long is it? This is the time between original infection with HIV and the appearance of Detectable antibodies to the virus, normally a period of about 14-21 days.
世界卫生组织的定义是3周。请楼上不懂就别乱说。OK.
Window period What is the "window-period" and how long is it? This is the time between original infection with HIV and the appearance of Detectable antibodies to the virus, normally a period of about 14-21 days.