Acquired Immuno Deficiency Syndrome (AIDS) is caused by at least two retroviruses, the HIV 1 and the HIV 2, collectively referred to as HIV 1/2. Antibodies to HIV 1 envelope protein (gp 120), transmembrane protein (gp 41) and HIV 2 transmembrane protein (gp 36) are prevalent in sera of individuals with AIDS or ARC or who are at high risk of contracting AIDS. Detection of these antibodies indicates exposure to the HIV 1/2 virus. |
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