How is human immunodeficiency virus (HIV) spread?
A person can get HIV by coming into contact with an infected person's body fluids (blood, semen, vaginal fluids, breast milk), and HIV can be spread through:
Vaginal, oral, or anal sex
Sharing unclean needles to take drugs
Pregnancy (from an infected mother to baby)
Blood transfusions (since 1985, blood donations have been routinely tested for HIV, so infection from blood transfusions is rare)
From: Pregnancy and HIV Testing WebMD Medical Reference
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