Table 2: Patterns of amino acids changes and mutations in katG gene.

Number of isolates (%)Amino acid changes in katG geneMTBDRplus assay INH mutation patterns (katG gene)Finding

49 (71%)katGS315T1 (Ser-Thr)ΔWT, MUT1
2 (2.9%)Not knownΔWT
18 (26.1%)No changeWT