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Filters Content type: News, Editors' picks Topic: CD4 count

CD4 cells are the most important cells in the immune system. A type of test called a CD4 count tells you how many CD4 cells there are in a small sample of blood. The more there are the better. Decisions about when to start treatment are often based on the CD4 count.

The genetics of coping with HIV

Editor's pick
Science Daily
12 November 2014