To get aids do you have to it from someone who has it?

HIV, the virus that causes AIDS, can only be transmitted through specific bodily fluids: blood, semen, vaginal fluid, rectal fluid, and breast milk. You can get HIV by having sex with someone who has HIV without using a condom, sharing needles or other drug paraphernalia with someone who has HIV, or from an infected mother to her baby during pregnancy, childbirth or breastfeeding. It is not transmitted through saliva, sweat, tears, or casual contact.