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National Center for HIV, STD and TB Prevention Divisions of HIV/AIDS Prevention |
What causes AIDS? AIDS is caused by infection with a virus called human immunodeficiency virus (HIV). This virus is passed from one person to another through blood-to-blood and sexual contact. In addition, infected pregnant women can pass HIV to their babies during pregnancy or delivery, as well as through breast feeding. People with HIV have what is called HIV infection. Some of these people will develop AIDS as a result of their HIV infection. For more information see “What is HIV?”
Last Updated: December 15, 2003 Centers for Disease Control & Prevention National Center for HIV, STD, and TB Prevention Divisions of HIV/AIDS Prevention Contact Us |