Within each community, a select number of MSM will be evaluated at various points during the study. The initial evaluation visit will occur prior to any treatment and will include an interview, counseling, and HIV/STI testing. The interview will involve questions about health and community, including topics such as sexual activities, views on health problems, use of alcohol and drugs, use of health care services, and attitudes about people with HIV or AIDS. Counselors will then provide information about contracting and preventing HIV/STIs and will ask questions about STI symptoms. Finally, HIV/STI testing will be conducted and throat and anal swabs will be collected. Two weeks after the initial evaluation, MSM will receive their test results, and if positive for HIV or any STIs, they will receive appropriate referrals, services, and treatments. They will also receive the specific treatment to which their community was assigned and will be asked additional questions concerning the treatment of their partners, if applicable. The remaining evaluations, which will repeat assessments from the initial evaluation, will occur at months 9 and 18.