During the sharing of needles used for shooting drugs or for tattoos or piercing. Blood transfusions from someone who is infected with HIV to a person who is not HIV-infected. In the United States, this happened mostly before a screening test for HIV began to be used, in 1985. HIV transmission by blood transfusion still takes place in other parts of the world. Pregnant women infected with the AIDS virus can pass it on to their unborn children.
Mothers can pass it to their babies while breastfeeding.
Actually, AIDS is very difficult to get, because it requires the transfer of blood, semen, or vaginal secretions from an infected person to someone who is not infected. Most everyday activities put you at no risk for catching the HIV virus. Abstinence Not having sex and not sharing needles are the safest ways to avoid getting the HIV virus. Safer sex is sexual activity without any transfer of semen, vaginal fluids, or blood. That includes touching, kissing, hugging, and many other ways of expressing affection.