Time to positivity in liquid culture predicts colony forming unit counts of Mycobacterium tuberculosis in sputum specimens

AH Diacon, L van der Merwe, AM Demers… - Tuberculosis, 2014 - Elsevier
Time to liquid culture positivity (TTP) is a technically accessible and widely available
measure of viable mycobacterial load in sputum samples. We describe the ability of TTP to
predict colony forming unit counts of Mycobacterium tuberculosis from sputum samples
collected before or during the first 14 days of antituberculosis therapy.