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Some bacteria underneath the foreskin increases the risk of contracting HIV.
These bacteria cause specific immune cells to accumulate at the penis give HIV easy access to enter the body.
An imbalance in genital bacteria can increase HIV risk. Circumcision reduces the risk of bacteria, since these anaerobic bacteria can not flourish outside of the moist oxygen-starved foreskin.
Researchers analyzed penile swabs from different uncircumcised men, and
examined the 10 bacteria species that are most commonly reduced after male circumcision.
The men who contracted HIV had higher amounts of certain bacterial strains under their foreskin. A 10-fold increase in the species Prevotella, Dialister, Mobiluncus and Murdochiella roughly equated to a 10 percent increase in the risk of contracting HIV.
The researchers discovered that some species of bacteria increase a man’s HIV susceptibility by causing specific immune cells to accumulate under the foreskin and act as a direct entry into the body.
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