Step 1: Enrolment of inmates eligible for study participationStep 2: Study implementation1st day of study: Inclusion of participants and questionnaire administration2nd day of study: Preparing the list of participants for the 1st sputum sample collection and chest X-ray3rd day of study: Collecting the 1st sputum sample and performing the chest X-ray 4th day of study: Transport of sputum samples to CeDRes and collection of chest X-ray and laboratory test results 5th day of study: Collecting the 2nd sputum sample, performing the HIV test and preparing the samples to be sent to CeDRes