Thailand (2008): HIV/AIDS TRaC Study among Injecting Drug Users in Bangkok, Chiang Mai, and Chiang Rai. Third Round.

This study design is for the third wave of the TRaC Survey. This survey aims to answer two fundamental questions related to monitoring and evaluation of populations.1. Monitoring. What are the levels and trends are evident in other key behavior, risk, OAM constructs, and exposure to PSI/Thailand activities? 2. Evaluation. Is exposure to PSI/Thailand activities leading to changes in OAM, risk, and behavior? Tracking surveys will be conducted annually