A cross-sectional survey was conducted in Hangzhou, China, to determine rates of condomless anal intercourse CAI , recent HIV testing in the recent year and associated factors using respondent-driven sampling. Questionnaires using face-to-face interviews were employed to collect data on sexual risk behaviors and HIV testing. Five hundred eleven MSM were recruited, of which Of these participants, Weighted data were analyzed using bivariate and multivariate logistic regression analysis.
Anal Sex Increases Risk For Heterosexual HIV Transmission
Researchers reported at Barcelona on a study looking at the risk for heterosexual HIV-transmission to women through receptive anal sex between HIV-infected men and their monogomous female partners. They used data from the California Partners Study. The researchers reported that the risk of transmission for each individual anal contact was 10 times higher than the risk for each individual vaginal contact. These authors concluded that the results confirm their previous finding that anal intercourse is a far more efficient mode of transmission than vaginal intercourse. They say further that a significant proportion of heterosexual HIV transmission results from anal sex particularly among people who practice anal sex a lot. Gilead Sciences is developing a cream or gel for Tenofovir as a microbicide to prevent vaginal heterosexual transmission. The authors also say anal sex is relatively common in many regions of the world, and more frequently reported among people at high risk foe getting HIV: IVDUs, sex workers, adolescents.
Valuing lived experience of substance use in our organizations: Five areas of policy and best practice. New lab process in B. Anal sex is a common practice among men who have sex with men, heterosexual men and women, and transgender individuals and is a known risk factor for HIV infection and transmission.
The risk of HIV through unprotected anal intercourse is seen to be extremely high, as much 18 times greater than vaginal intercourse. Furthermore, the secretion of blood from damaged rectal tissues can increase the risk for the insertive "top" partner, providing the virus a route of transmission through the urethra and tissues that line the head of the penis particularly under the foreskin. In their review of 16 different high-quality studies, researchers at the Imperial College and the London School of Hygiene and Tropical Medicine concluded that the per-risk act of HIV through condomless anal sex was roughly around 1. The risk of transmission was further increased if the insertive partner was uncircumcised 0.