Conditions InDepth: AIDS

AIDS is an illness that weakens the body's immune system. The immune system of a person with AIDS is not able to fight off certain infections and cancers.

The Immune System
Copyright © Nucleus Medical Media, Inc.
AIDS is caused by the HIV, which destroys important immune system cells. HIV is spread through contact with HIV-infected blood or other body fluids, including semen, vaginal fluid, and breast milk. Unprotected sex is the most common mode of transmission. Sharing needles for injecting drugs is another common way the virus is transferred. What are the risk factors for AIDS?What are the symptoms of AIDS?How is AIDS diagnosed?What are the treatments for AIDS?Are there screening tests for AIDS?How can I reduce my risk of AIDS?What questions should I ask my doctor?What is it like to live with AIDS?Where can I get more information about AIDS?

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