HIV is a virus which reduces people's resistance to illness and can cause AIDS. HIV is an abbreviation for 'human immunodeficiency virus'.
PHRASE. 习语
HIV positive , HIV negative
1.?艾滋病病毒检测呈阳性 , 艾滋病病毒检测呈阴性
If someone is HIV positive, they are infected with the HIV virus, and may develop AIDS. If someone is HIV negative, they are not infected with the virus.