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Flow from baseline enrollment of the index MDR TB cases and HHCs to HHCs reassessed at 1 year (from 247 households) who were either at risk of TBD or TBI. TBD and TBI analyses were completed separately, as all HHCs at risk of incident TBD were not necessarily at risk of incident TBI. Abbreviations: HHC, household contact; IGRA, interferon-gamma release assay; MDR, multidrug-resistant; RR, rifampin-resistant; TB, tuberculosis; TBD, tuberculosis disease; TBI, tuberculosis infection.
