Exchanges between the way men and men, the AIDS virus can enter through the mucous membrane of damaged blood circulation or the lymphatic system, the AIDS viruses to same-sex and heterosexual couples.

• 男男性交往的方法，艾滋病病毒可通过破损粘膜进入血液循环或淋巴系统，把艾滋病病毒传给同性及异性性伴侣。