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According to the CDC, more than 1.1 million Americans are infected with HIV, the virus that causes AIDS. One in 8 of these people doesn't know they are infected. Find out more about HIV and AIDS by taking this quiz, based on information from the CDC.
Currently, no vaccine is available for HIV. Protect yourself by:
Drug users must not share needles and syringes. They should not expose themselves to the blood of others. Remember, a person can be HIV-positive and not have symptoms. Have yourself tested to learn your status. Before you have sex with a new partner, ask the person about his or her HIV status. Ask when the person was last tested. Birth control pills and spermicides don’t protect you from getting HIV.
Francesca Torriani, MD
Medical Director, Infection Prevention and Clinical Epidemiology
UC San Diego | School of Medicine