• Law ethics
• notification
• chlamydia
• epidemiology

This month, we carry a series of related papers exploring the sexual health of Eastern European migrants to the UK.1 As the accompanying editorial points out,2 Burns and her team overcame substantial methodological challenges in surveying this diverse group, and are to be congratulated on a comprehensive overview of sexual health and behaviour in a migrant community. They demonstrate particular vulnerability of MSM (men who have sex with men), which has important implications for health promotion and service provision—though reported rates of HIV prevalence are lower than the UK population, high risk behaviour is common and there is much potential for cross-border interaction between differing epidemics.

The challenges of surveying hidden populations are also addressed by Paz-Bailey et al.3 They present a capture-recapture based approach to measure the size of the MSM and FSW (female sex …