Tracking HIV, Hepatitis B, and C in French Drug Users: A 25-Year Journey

For the past 25 years, France has been monitoring HIV and hepatitis B and C among drug users through the ANRS-Coquelicot survey. This unique experiment, conducted in cities across the country, has recruited participants from various services like drug treatment centers and harm reduction facilities. The survey uses a clever mix of methods, including Time Location Sampling and the Generalized Weight Share Method, guided by earlier anthropological studies. Over time, the survey has faced challenges, such as convincing professionals to participate, as they initially saw it as a form of social control. However, the addition of a socio-anthropological phase helped improve the survey's acceptance and methodology. This survey not only generates scientific knowledge but also influences drug policies, aiming to create safer environments for users. It's a fascinating example of how surveillance can both inform and adapt to changing needs.

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