Research studies sometimes dont use the terminology in this way.
What MSM Means
MSM focuses on behavior rather than self-identification.
Before this change, many infections were left unaccounted for.
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Despite their smaller numbers, MSM account for about two-thirds of all infections.
Lesbians have lower rates of HIV than heterosexual people or MSM.
Biological Risk Factors
MSM are at greater biological risk of HIV because ofanal sex.
Simply put, a person is more likely to get HIV from anal sex thanvaginal sex.
The risk may be as much as 18 times greater than that of vaginal sex.
There are several explanations for this:
Because of these and other factors, HIV infection can occur quickly.
Sexual Risk Factors
Sexual behaviors also add to the risk of HIV in MSM.
This includes having multiple sex partners or using online hookup sites.
While these factors are not exclusive to MSM, they can amplify the risk in certain groups.
Condomless Sex
Condomless anal sex further compounds the risk of getting HIV.
If the rate continues to increase, it may hinder progress toward ending the HIV/AIDS epidemic.
Many who start treatment for HIV do not continue.
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