Figure 1From: Serial counts of Mycobacterium tuberculosis in sputum as surrogate markers of the sterilising activity of rifampicin and pyrazinamide in treating pulmonary tuberculosisMean cfu counts during chemotherapy in patients who had complete sets of counts up to 2 days of treatment, or up to 7 days or 14 days or 28 days of treatment, but in each case no further positive sputum cultures thereafter.Back to article page