Is it possible to transmit HIV from infected woman uninfected man by single sex even though you do not use protection?

It is not possible to transmit HIV from an infected woman to an uninfected man through single sex, even without protection. HIV is a sexually transmitted infection that is primarily spread through unprotected vaginal or anal sex. It can also be transmitted through sharing contaminated needles or other drug paraphernalia, as well as from mother to child during pregnancy, childbirth, or breastfeeding. Single sex, which involves sexual activity between two individuals of the same sex, does not pose a risk of HIV transmission.