| Definition | |
|---|---|
|
Multidrug-resistant tuberculosis (MDR-TB) |
Tuberculosis resistant to rifampicin and isoniazid |
|
Pre-extensively drug- resistant tuberculosis (pre-XDR-TB) |
MDR-TB plus additional resistance against a fluoroquinolone or a second-line injectable |
|
Extensively drug- resistant tuberculosis (XDR-TB) |
MDR-TB plus additional resistance against a fluoroquinolone and a second-line injectable |
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