Resistance pattern No. of resistant isolates (%)
Resistance to any drug 63 (24.1)
One drug resistance  
INH 10 (3.8)
RIF 4 (1.5)
SM 14 (5.4)
EMB 19 (7.3)
total 47 (18.0)
Two drug resistance  
INH+RIF 4 (1.5)
INH+SM 1 (0.4)
INH+ EMB 2 (0.8)
SM+EMB 2 (0.8)
RIF+SM 1 (0.4)
total 10 (3.8)
Three drug resistance  
INH+RIF+EMB 1 (0.4)
INH+RIF+ SM 4 (1.5)
INH+SM+EMB 1 (0.4)
total 6 (2.3)
MDR* 9 (3.4)
Table 1: Drug resistant patterns to four anti-tuberculosis drugs. *MDR: Multi-drug resistant: resistance to both INH and RIF with or without resistance to other drugs