HIV virus la chiec vi virus gay ra hiv nghiem trong. Chung khong chi lay truyen benh cho co quan sinh duc cua nam, nu gioi sau luc voi quan he tinh duc ko an toan ma mau vi virus nay con so huu the tham nhap toi nhieu vi tri khac nhu lo dit, mom, vom hong va dac biet la H.I.V o mat. Nhung chang he nguoi nao cung biet duoc mang hiv co bi lay qua mat khong ton tai cua can benh nay cho nen moi