The project will use a field approach readily inserted within an ongoing combination prevention intervention, including clinical (for ex.: HIV testing and care, STI care) , behavioural (for ex.: non-governmental organization- and peer-led condom promotion) and structural components (for ex.: community empowerment, advocacy to decrease police harassment; community development activities leading to the constitution of FSW-led community based organizations), that the investigators implement in close collaboration with the National AIDS Control Programme (NACP) in most of the major cities and towns of Benin through a grant from the Canadian Institutes of Health Research (CIHR). The Dispensaire IST (DIST), a STI clinic dedicated to FSWs in Cotonou, will be the study clinic for this project.