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Describe CD4
Aug 16, 2002

Could someone please explain what CD4 is exactly in simple terms? Also, what is a normal CD4 in a non-HIV infected individual? Thank you.

Response from Dr. Holodniy

CD4 refers to a type of t lymphocyte, responsible for helping contain various infections. The CD4 refers to a receptor (a molecule) on the surface of the cell that we use to identify this type of cell. It also is the receptor that HIV uses to attach to this cell and subsequently infect the cell.



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