HIV virus la loai vi virus gay ra hiv hiem nguy. Chung ko chi lay truyen benh cho co quan sinh duc cua nam, nu gioi sau khi so huu quan he tinh duc ko an toan ma mau vi virus nay con mang the tham nhap toi da dang vi tri khac nhu lo dit, mieng, vom hong va dac biet la H.I.V o mat. Nhung khong phai nguoi nao cung biet duoc voi hiv co bi lay qua mat khong ton tai cua can benh nay do vay moi ng