Strain No. of studied strains (total) No. of strains sensitive to all first-line drugs No. of strains sensitive to CIP No. of strains sensitive to OFL MTB 50 50 50 (100%) 50 (100%) MTB: Mycobacterium tuberculosis, CIP: Ciprofloxacin, OFL: Ofloxacin

Table1: Drug sensitivity rate of 50 MTB strains sensitive to all first-line drugs against CIP and OFL.