TB Aftermath will compare effectiveness, cost-effectiveness and feasibility of two ACF strategies for detecting recurrent TB and provide evidence needed to implement and scale the preferred ACF strategy. The specific aims are: Primary Aim 1: To conduct a non-inferiority randomized trial to measure the comparative effectiveness of two potentially implementable ACF strategies within India's National TB Elimination Program (NTEP), conducted by existing NTEP healthcare workers (HCWs): (i) home-based ACF (HACF) and (ii) telephonic ACF (TACF). Primary Aim 2: To characterize implementation processes of the ACF strategies using the Reach, Effectiveness, Adoption, Implementation, and Maintenance (RE-AIM) framework to inform future scale-up and sustainability. Primary Aim 3: To model the impact and cost effectiveness of the ACF strategies evaluated in the trial, and of potential alternative strategies for the targeting and timing of those strategies. Secondary Aim: To measure the association of the severity, chronicity and progression of post-TB lung impairment with recurrent TB disease.
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Rate per 100 person-years of people diagnosed with new or recurrent TB by study arm.
Timeframe: Within 12 months following index TB patient's treatment completion date.