Table 1– Definitions of multidrug-resistant (MDR) and extensively drug-resistant (XDR) tuberculosis
MDRXDR
Resistance to at least both isoniazid and rifampicinResistance to:
1) isoniazid and rifampicin (i.e. MDR); and
2) any fluoroquinolone; and
3) at least one of the three SLIDs (capreomycin, kanamycin and amikacin)

  • SLID: second-line injectable drug. Information from [18].