Figure 1From: Lysis of tubercle bacilli in fresh and stored sputum specimens: implications for diagnosing tuberculosis in stored and paucibacillary specimens by PCROutline of sputum processing protocol. FS, S1 and S2 refer to supernatant fractions from fresh, 1 month and 2 months stored samples, respectively. FP, P1 and P2 refer to bacterial pellet fractions from fresh, 1 month and 2 months stored samples, respectively.Back to article page