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Cause

The HIV infection is caused by the human immunodeficiency virus (HIV).

After HIV is in the body, it starts to destroy CD4+ cells, which are white blood cells that help the body fight infection and disease.

Recommended Related to HIV/AIDS

The Difference Between HIV and AIDS

HIV is the virus that can become AIDS. AIDS is defined as the most advanced stage of the virus, where the immune system has become so damaged that you're vulnerable to infection and cancers that come from infections. Those are called opportunistic illnesses, because they take advantage of your weakened immune system. They are often fatal. 

Read the The Difference Between HIV and AIDS article > >

HIV is spread when blood, semen, or vaginal fluids from an infected person enter another person's body, usually through sexual contact, from sharing needles when injecting drugs, or from mother to baby during birth.

WebMD Medical Reference from Healthwise

Last Updated: May 16, 2013
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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