Add penis bacteria to the list of HIV risk factors

Microbes that thrive in oxygen-poor places may lure virus’s prey: vulnerable immune cells

Prevotella

BAD BACTERIA  Bacteria such as Prevotella (shown) are anaerobes — they can survive without oxygen. An increase in anaerobic bacteria on the penis raises the risk of HIV infection, a new study suggests.

Dennis Kunkel Microscopy/Science Source

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