User-friendly HIV Testing and Counseling Services

Multicenter cohort study of individuals reporting behavioral risks of HIV acquisition, recruited among those presenting for testing for HIV and other sexually transmitted infections. Overarching goal: to study factors associated with uptake of HIV prevention and (re)testing services in medium-sized cities in Thailand. Primary objective: To estimate the incidence of HIV and other sexually transmitted infections (syphilis, chronic hepatitis B and C) among individuals presenting for retesting. Secondary objectives: * To evaluate the uptake of pre-exposure prophylaxis * To assess retention in the study * To evaluate client HIV knowledge * To describe HIV prevalence and characteristics of individuals newly diagnosed with HIV * To describe characteristics of individuals at risk of HIV infection * To assess the quality of the testing and referral services.