Before launching the intervention program, the investigators will discuss the objectives and procedures of the program with the prison administrators, the prison health personnel, and the prisoners. Inmate peer educators, about 3-6 from each prison, will be recruited in consultation with the prison health personnel. The investigators, in collaboration with the prison health personnel, will provide 3 days training for inmate peer educators using standard TB training materials. The training will focus on basic facts about TB: its cause, transmission, symptoms, diagnosis, prevention, treatment, and outcomes. Inmate peer educators will be trained on how to provide health education about TB, screen and identify presumptive TB cases, and support TB patients to adhere to the TB treatment. Moreover, inmate peer educators will be provided with leaflets and posters illustrating the cause, transmission, main symptoms of TB, and containing the information that TB is curable with proper treatment. Inmate peer educators will also be informed to teach and encourage their fellow inmates about the isolation of TB patients as much their setting allows.