49. How can I prevent HIV transmission during oral sex?

The risk of HIV transmission through oral sex is low, but people have been infected this way. Oral sex can be made safer by using a latex barrier. For oral sex performed on a man, a non-lubricated condom is recommended. For oral sex performed on a woman, a dental dam (a thin square of latex), a non-lubricated condom that is cut open, or a plastic wrap can be used to cover the vagina. Oral-anal sex (rimming) is a high-risk activity that may be made safer by using a dental dam.