Table 3.
Drug resistance patterns in source and secondary cases
| Related pairs |
Resistance pattern |
|||
|---|---|---|---|---|
| Isoniazid | Rifampin | Ethambutol | Streptomycin | |
| MDR-TB1 |
0.1 |
2.0 |
4.0 |
S |
| S |
S |
S |
S |
|
| MDR-TB2 |
0.1 |
2.0 |
NR |
S |
| S |
S |
S |
S |
|
| MDR-TB3 |
0.1 |
2.0 |
4.0 |
S |
| S |
S |
S |
S |
|
| MDR-TB4 |
0.4 |
2.0 |
2.5 |
S |
| S |
S |
S |
S |
|
| MDR-TB5 |
0.4 |
2.0 |
2.5 |
S |
| S |
S |
S |
S |
|
| HMR-TB1 |
0.1 |
S |
S |
S |
| 0.1 |
S |
S |
S |
|
| HMR-TB2 |
0.1 |
S |
S |
S |
| 0.1 |
S |
S |
S |
|
| HMR-TB3 |
0.1 |
S |
S |
S |
| S |
S |
S |
S |
|
| HMR-TB4 |
0.1 |
S |
S |
S |
| S |
S |
S |
S |
|
| HMR-TB5 |
0.1 |
S |
S |
S |
| 0.1 |
S |
S |
S |
|
| HMR-TB6 | 0.1 |
S |
S |
S |
| S | S | S | S | |
The first row in each pair represents source case sensitivity profile, while the second represents the secondary case susceptibility. S = sensitive, NR = no result. Resistance values reported in microG/microL.