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Better-Off Circumcised? Foreskin may permit HIV entry, infection

Circumcision seems to arm men with a degree of protection against HIV, the AIDS virus, but the mechanism underlying this defense has been unclear. A new study bolsters earlier reports implicating the foreskin of the penis as one of HIV's portals to the body. The study also finds that while circumcision confers some protection against HIV, it doesn't guard against other sexually transmitted diseases.

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