<prompt> Diagnosis of TB ace to DOTS ?1 out of 2 samples positive2 out of 3 samples positive3 out of 3 samples positiveNone  <response>: Ans. is a i.e., 1 out of 2 samples positive o Two sputum smear samples are examined. o If any of the two samples or both the samples are positive, the diagnosis of smear-positive TB is confirmed. 