Table 1. Molecular resistance to rifampin and isoniazid in Mycobacterium tuberculosis isolates with proportional analysis by center/laboratory, Samara Oblast, Russian Federation.
| Laboratory location | No. of isolates examined for rifampin resistance (n=130)a | No. of rifampin-resistant isolates (%) | No. of isoniazid-resistant isolates (%)b |
|---|---|---|---|
| All | 134 | 78 (58.2) | 66 (–) |
| Prison TB colony | 45 | 36 (80.0) | 27 (60.0) |
| City dispensary 1 | 11 | 4 (36.4) | 4 (36.4) |
| City hospital 1 | 34 | 18 (52.9) | 14 (41.2) |
| Novokubshev town laboratory | 21 | 9 (42.9) | 11 (52.4) |
| Oblast regional TB laboratory | 19 | 11 (57.9) | 10 (52.6) |
aOf 140 cultures, 134 results were produced, but only 130 were available for results by center; 2 were M. gordonae, amplification failed for 4 cultures, and center could not be definitively identified for 4. bOf 140 cultures, amplification products that could be evaluated were obtained from 128 cultures.