Many of the strategies below will also provide protection against other sexually transmitted infections: This content was checked for accuracy at the time it was written.
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Doctors and researchers can't be sure how many people have been infected with HIV through oral sex.
There is also more risk if you have an infection, including sexually transmitted ones, in your throat or mouth which is causing inflammation.
For men, having a high viral load in the blood may also mean that viral load is high in the semen.
It is clear that oral sex involves much less risk than unprotected anal sex or unprotected vaginal sex.