How Are Heterosexual Men Reached in HIV Prevention?
Current Trends Update: Heterosexual Transmission of
Since reports of the human immunodeficiency virus HIV began to emerge in the United States in the s, the HIV epidemic has frequently been linked to gay , bisexual , and other men who have sex with men MSM by epidemiologists and medical professionals. The first official report on the virus was published by the Center for Disease Control CDC on June 5, and detailed the cases of five young gay men who were hospitalised with serious infections. It is now well understood that HIV does not only affect the gay community but can also infect anybody, regardless of sex, ethnicity, or sexual orientation. MSM are only a small percentage of the U. Men who have sex with men abbreviated as 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 personally identify themselves. Many MSM choose not to or cannot for other reasons identify as homosexual or bisexual. Determining the number of men who have ever had sex with another man is difficult worldwide.
What Is the Risk of HIV From Anal Sex?
The risk of getting HIV varies widely depending on the type of exposure or behavior such as sharing needles or having sex without a condom. Some exposures to HIV carry a much higher risk of transmission than other exposures. For some exposures, while transmission is biologically possible, the risk is so low that it is not possible to put a precise number on it. But risks do add up over time. Even relatively small risks can add up over time and lead to a high lifetime risk of getting HIV.
A heterosexual person infected with HIV will transmit the virus to their partner once in every times the couple has unprotected sex, according to a new study conducted in Africa. However, the exact number of sexual acts that are needed to transmit the virus can vary tremendously depending on the amount of the virus in the infected person's blood, said study researcher James Hughes, of the University of Washington in Seattle. In fact, the amount of virus in the blood is the single most important factor in determining whether HIV is passed between sexual partners, the study found.