High prevalence of HIV and limited use of condoms among MSM: results from a biological and behavioral surveillance in Mexican urban contexts
Background: Mexico conducted a biological and behavioral surveillance study in 2005 to examine the HIV prevalence and sexual practices of men who have sex with men (MSM) in three cities: Acapulco, Monterrey and Nezahuacoyotl.
Methods: A probability sample (Time Location Sampling) of 841 MSM completed a behavioral interview and underwent voluntary HIV counseling and testing using the Determine® rapid test. Local counseling centers provided HIV test results to interested participants using unique identifiers for each individual.
Results: HIV prevalence was 10.4% among respondents. In the previous six months: 47% had regular partners, 69% had non-regular partner; 8% paid for sex; and 10% received money for sex. Among those that reported having a regular partner, 43% had had another partner simultaneously. At last sex, 72% of MSM used a condom with their regular partner, 76% with commercial partners, and 84% with non-regular partners. 41% reported ever having sex with women, and 19% had sex with a woman in the previous six months. Only half (55%) of these MSM reported condom use with female partners at last sex. 55% reported previously testing for HIV before the surveillance survey. Half of MSM (50%) perceived themselves as having low or no risk of HIV infection. 12% believe it is possible to be infected with HIV through a mosquito bite.
Conclusions: After 20 years of HIV in Mexico, behavioral data reveal that MSM still have many basic misconceptions about HIV transmission and low risk perceptions. In addition, only half of the sample had previously undergone HIV testing. Condom use is also limited, especially with male sex workers and women. It is possible that the epidemic is spreading to the female population. It is necessary to build and strengthen prevention strategies among the MSM population in Mexico. Behavioral and biological surveillance is critical to inform such strategies.
AIDS 2006 - XVI International AIDS Conference
"C.Gayet, et al.
High prevalence of HIV and limited use of condoms among MSM: results from a biological and behavioral surveillance in Mexican urban contexts.
AIDS 2006 - XVI International AIDS Conference: