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CD4+ Cells - Topic Overview

CD4+ cells are part of the immune system and are a type of white blood cell. White blood cells protect the body against infection. CD4+ cells are also called T-lymphocytes, T-cells, or T-helper cells.

HIV invades and destroys CD4+ cells. But the body continues to produce new CD4+ cells to fight the HIV infection. If the infection is not treated with medicines, the body gradually loses the ability to produce enough CD4+ cells to replace the number that are being destroyed by HIV. As the number of CD4+ cells in the blood drops, it becomes harder for the immune system to fight infections.

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Regina King's Fight Against HIV/AIDS

The November day in 1991 when basketball great Earvin "Magic" Johnson announced he was HIV-positive was a sobering reality check. All of a sudden, the disease many dismissed as affecting only gay men and intravenous drug users had hit a major celebrity. But the news struck Regina King especially hard. Then 20 years old and already making a living as an actor in Los Angeles, King had just broken up with her first love and first sexual partner -- a man she knew had cheated on her with at least one...

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CD4+ counts are measured every 3 to 4 months in people who are infected with HIV. The CD4+ count is an important measurement of how HIV is affecting your immune system and can help you decide when to begin treatment for HIV or when you need to try a different combination of medicines.

WebMD Medical Reference from Healthwise

Last Updated: April 05, 2012
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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