This study seeks to implement a sexual health promotion intervention for male sex workers in Hanoi and Ho Chi Minh City, Vietnam. The study hypothesis is that this intervention will increase testing, treatment and vaccination for sexually transmitted infections, including intentions of participants to engage in these services beyond the conclusion of the intervention. At the community level, the study hypothesis is that male sex workers will be more aware of sexual health care and more likely to access these services in the future.

The intervention is administered in community and clinic settings. The full intervention consists of seven core modules: Sexual Health, Sexual Diversity, HIV/STI Transmission, Behavioral Risk and Risk Reduction, Alcohol and Drugs, Stigma, and HIV/STI and Health Seeking Practices. In the community, outreach is conducted by Health Educators to deliver the intervention modules that young men express and interest in, as well as to provide risk reduction materials including condoms and lubricant. Study interviewers conduct a cross-sectional interview of young male sex workers in community venues (the interviewers and health educators are never present in a venue at the same time), and a random sample of interviewees are invited to a local clinic, where they receive a more detailed interview, the full intervention (delivered one on one by a Health Educator and including all seven modules), a clinical exam, testing for HIV and other STIs (HBV, HCV, gonorrhea, syphilis, chlamydia), onsite treatment, vaccination and referral, and a post-intevention assessment.

Inclusion Criteria:

• Born biologically male; age 16-29; exchanged sex for money or other material goods with another man in the past 90 days

Exclusion Criteria:

• inability to provide informed consent