Women who have sex with women frequency of HIV transmission, although transmission is possible through vaginal and cervical secretions; the highest rate of transmission of HIV to women is among those who have sexual intercourse with men or participate in intravenous drug use. Women who have sex with women Women who have sex with women (WSW) are women who engage in sexual activities with other women, whether or not they identify themselves as lesbian, bisexual, pansexual, heterosexual, or dispense with sexual identification altogether. The term "WSW" is often used in medical literature to describe such women as a group for clinical study, without needing to consider
Men who have sex with men Men who have sex with men Men who have sex with men (MSM), also known as males who have sex with males, are male persons who engage in sexual activity with members of the same sex, regardless of how they identify themselves; many such men do not sexually identify as gay, homosexual or bisexual. The term "MSM" was created in the 1990s by epidemiologists to study the spread of disease among men who have sex with men, regardless of identity. The term "MSM" is often used in medical literature and social research to describe such men as a group for