identity
Objectives. We sought to determine the association of social–environmental factors with condom use and sexually transmitted infections (STIs) among 420 sex workers participating in an STI/HIV prevention study in Corumbá, Brazil, to inform future intervention efforts. Community mobilisation among sex workers is recognised as an important HIV/STI prevention strategy. However, factors such as poverty and stigma often negatively influence participation in activities that attempt to mobilise around a common identityof ‘sex workers’. A qualitative study was conducted to explore the relationship between social identity and participation among 24 sex workers enrolled in an HIV/STI prevention intervention research project with a