The problem of resistance in may be underestimated in Africa.

Background: The true burden of tuberculosis (TB) and particularly multidrug-resistant (MDR) TB in Sub-Saharan Africa has remained underestimated.

Methods: We investigated drug susceptibility profile and genetic diversity of Mycobacterium tuberculosis isolates collected from confirmed tuberculosis patients in Ibadan, southwestern Nigeria.

Results: We confirmed that from 74 randomly selected Mycobacterium tuberculosis isolates available for drug susceptibility testing in Ibadan, in 2011, 13.