Risk, vulnerability, and HIV/AIDS among men who have sex with men: A behavioral analysis

HIV cases in Brazil and the city of São Paulo mainly occur among men who have sex with men (MSM) and within the age group 20–29. Considering that, this study aimed to investigate, from a behavior analysis perspective and an indirect functional assessment strategy (questionnaire): (a) possible present variables of the behavior of practicing condomless sex among eight MSM aged 20–29 in the District of República, in São Paulo, and (b) discourses on sexual behavior, risk-taking knowledge, prevention strategies, and information on HIV/AIDS into the same group. The results indicated inconsistent condom use with regular partners, knowledge about pre- and post-exposure prophylaxes for HIV, and non-stigmatizing discourses about MSM’s sexual behavior and HIV/AIDS. Reinforcing, potent, and immediate consequences, regarded as “greater pleasure” and “freedom,” for instance, may affect condomless sex, as well as countercontrolling variables.