• Article

Dual sampling for STI research, prevention, and treatment

In The Lancet Infectious Diseases, César Cárcamo and colleagues report the prevalence of sexually transmitted infections (STIs) in individuals in Peru aged 18–29 years from the general population and female sex workers (FSWs).1 These values represent baseline data from the Peru PREVEN study2—a community-randomised intervention trial of prevention of STIs in Peru. By undertaking a random household study of more than 15?000 young men and women and a venue-based sample of more than 4400 FSWs in 24 cities in Peru, the investigators have established that rigorous biosocial research into vulnerable populations is feasible in a geographically disperse, developing nation.


Lorvick, J., & Kral, A. (2012). Dual sampling for STI research, prevention, and treatment. Lancet Infectious Diseases, 12(10), 739-740. DOI: 10.1016/S1473-3099(12)70176-7