It can enter the body through needle punctures, the rectum, vagina, penis, mouth or any cut or open sore. Anal intercourse is especially risky for both men and women because of the delicate tissues in which capillaries break and cause blood contact. HIV is in the blood, semen or vaginal secretions of an infected person. The two main ways of spreading HIV are having sex and using contaminated needles to inject drugs. In addition, infected women can pass HIV infection to their newborns.
Abstinence is the only safe choice.
Condoms are the best prevention for sexual transmission of HIV, but they aren't foolproof. Latex condoms provide the best protection, but any condom must be used properly and every time. AIDS is fatal. How HIV Spreads Sexual Contact Sex with someone who has had multiple sex partners or who won't openly discuss past sexual experiences. Sex with someone who injects or has injected drugs.