Table 1.

Inclusion and exclusion criteria

	Inclusion criteria
1.	Age >18 years
2.	Sample volume of at least 3 ml
3.	Signs and symptoms >2 weeks of pulmonary tuberculosis
	And any one of the following
4.	Patients previously treated with first-line ATT
5.	New cases of tuberculosis not responding to first-line ATT
6.	Failures of new tuberculosis cases
7.	Smear positive patients who remain smear positive at the 4th month of treatment
8.	Contact of an MDRTB case with symptoms of pulmonary TB
	Exclusion criteria
1.	Patients with extrapulmonary TB