Contact tracing for tuberculosis, Thailand.

Problem: Despite implementation of universal health coverage in Thailand, gaps remain in the system for screening contacts of tuberculosis patients.

Approach: We designed broader criteria for contact investigation and new screening practices and assessed the approach in a programme-based operational research study in 2017-2018. Clinic staff interviewed 100 index patients and asked them to give household and non-household contacts an invitation for a free screening and chest X-ray.