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A 27-year-old male asked:

How in the world can hiv be in one fluid, but not the next?

1 doctor answer1 doctor weighed in
Dr. Nicos Nicolaou
General Practice 16 years experience
HIV and bodyfluids: Because of viral tropism which refers to the cell types a virus infects.Hiv can infect a variety of immune cells such as t cells (cd4+), macrophages, and microglial cells.Therefore, infection with HIV occurs by the transfer of blood, semen, vaginal fluid, pre-ejaculate, or breast milk. Within these bodily fluids, HIV is present as both free virus particles and virus within infected immune cells.

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Last updated Jun 10, 2014

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