Gene variant found in those with African ancestry increases odds of HIV infection

A variant of a gene found only in people of African ancestry increases the odds of becoming infected with the human immunodeficiency virus (HIV-1) by 40 percent, according to a long-term study of African Americans reported in the [date] issue of the journal Cell Host & Microbe, a publication of Cell Press. However, once people are infected, the same variant seems to protect against progression of the disease, allowing those who carry it to live about two years longer.

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