DST in MGIT | Genotype MTBDR | ||
Cultures# | Sputum | ||
INHs, RMPs | 12 (34) | 14 (40) | 13 (37) |
INHr, RMPr | 13 (37) | 12 (34) | 9 (26) |
INHr, RMPs | 10 (28) | 7 (20) | 7 (20) |
INHs, RMPr | 0 (0) | 2 (6) | 2 (6) |
Not interpretable | 0 (0) | 0 (0) | 4 (11) |
The total number of samples was nā=ā35. Data are presented at n (%). DST: drug susceptibility testing; MGIT: Mycobacterial Growth Indicator Tube; INHs: susceptible to isoniazid (INH); RMPs: susceptible to rifampin (RMP); INHr: resistant to INH; RMPr: resistant to RMP. #: Using Genotype MTBDR (Hain Lifescience, Nehren, Germany), the following mutations were identified: 19 cases with mutations in katG, of whom 18 had mutation S315T and one a missing katG wild-type band; 14 cases with mutations in rpoB, eight of them with S531L, two with D516V, and one with H526Y and three with missing rpoB wild-type bands.