Frequency of isolated positive sputum cultures among pulmonary tuberculosis patients.

Objective: The occurrence of isolated positive sputum cultures among pulmonary tuberculosis (PTB) patients during treatment is not widely reported. This study describes the frequency of isolated positive sputum cultures among PTB patients after initiation of chemotherapy.

Methods: Fifty sputum culture positive PTB patients, consisting of 38 (76%) males and 12 (24%) females with a mean age of 34.