CAROL & MIKE WERNER / VISUALS UNLIMITED, INC. / SCIENCE PHOTO LIBRARY CAROL & MIKE WERNER / VISUALS UNLIMITED, INC. / SCIENCE PHOTO LIBRARY
Recent research indicates that the HIV virus can hide and become dormant in macrophage cells and memory T-cells in the blood and in bone marrow cells. When the progenitor cells develop into blood cells, the virus can be reactivated causing new infection.
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