Gram-negative bacilli are a major cause of secondary pneumonia in patients with pulmonary tuberculosis: evidence from a cross-sectional study in a tertiary hospital in Nigeria.

Background: This study was aimed at describing the profile of bacterial aetiology of secondary pneumonia in pulmonary tuberculosis (PTB) patients.

Methods: A 22-month analysis of patients with PTB and secondary bacterial pneumonia was conducted. Data on isolates recovered and the antimicrobial susceptibility profile were recorded.