Tuberculosis resistant to ISONIAZID and RIFAMPIN and at least three of the six main classes of second-line drugs (AMINOGLYCOSIDES; polypeptide agents; FLUOROQUINOLONES; THIOAMIDES; CYCLOSERINE; and PARA-AMINOSALICYLIC ACID) as defined by the CDC.
XDR-TB
Extensively Drug Resistant Tuberculosis — Tuberculosis, Extremely Drug-Resistant — Tuberculosis, Extremely Drug Resistant — Tuberculosis, Extensively Drug-Resistant — Drug-Resistant Tuberculoses, Extensively — Drug-Resistant Tuberculosis, Extensively — Extensively Drug-Resistant Tuberculoses — Tuberculoses, Extensively Drug-Resistant — Tuberculosis, Extensively Drug Resistant — XDR-TB — Extremely Drug-Resistant Tuberculosis — Drug-Resistant Tuberculoses, Extremely — Drug-Resistant Tuberculosis, Extremely — Extremely Drug Resistant Tuberculosis — Extremely Drug-Resistant Tuberculoses — Tuberculoses, Extremely Drug-Resistant