Select all of the following ways aids can be transmitted. sexual activity with someone who has it dirty (shared) needles used by drug addicts poorly tested blood transfusions insect vectors sneezing childbirth

HIV or Human Immunodeficiency virus which is the virus and disease that forms AIDS, any spreads through bodily fluid contact and exposure. Blood, Semen, and Lymph are all fair game, however water like substances like tears, sweat, and saliva are unable to.

So poorly tested blood transfusion, needle sharing, and sexual contact are all ways you could contract HIV.