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  2. Extensively drug-resistant tuberculosis - Wikipedia

    en.wikipedia.org/wiki/Extensively_drug-resistant...

    Extensively drug-resistant tuberculosis (XDR-TB) is a form of tuberculosis caused by bacteria that are resistant to some of the most effective anti-TB drugs. XDR-TB strains have arisen after the mismanagement of individuals with multidrug-resistant TB (MDR-TB). Almost one in four people in the world is infected with TB bacteria. [1]

  3. Management of tuberculosis - Wikipedia

    en.wikipedia.org/wiki/Management_of_tuberculosis

    As of October 2006, "Extensively drug-resistant tuberculosis" (XDR-TB) is defined as MDR-TB that is resistant to quinolones and also to any one of kanamycin, capreomycin, or amikacin. [76] The old case definition of XDR-TB is MDR-TB that is also resistant to three or more of the six classes of second-line drugs. [ 77 ]

  4. Multidrug-resistant tuberculosis - Wikipedia

    en.wikipedia.org/wiki/Multidrug-resistant...

    57 countries reported outcomes for patients started on extreme-drug resistant TB, this included 9258 patients. 39% completed treatment successfully, 26% of patients died and treatment failed for 18%. 84% of the extreme drug resistant cohort was made up of only three countries; India, Russian Federation and Ukraine.

  5. Tuberculosis - Wikipedia

    en.wikipedia.org/wiki/Tuberculosis

    Extensively drug-resistant TB is also resistant to three or more of the six classes of second-line drugs. [155] Totally drug-resistant TB is resistant to all currently used drugs. [ 156 ] It was first observed in 2003 in Italy, [ 157 ] but not widely reported until 2012, [ 156 ] [ 158 ] and has also been found in Iran and India. [ 159 ]

  6. Multiple drug resistance - Wikipedia

    en.wikipedia.org/wiki/Multiple_drug_resistance

    Extensively drug-resistant (XDR) is the non-susceptibility of one bacteria species to all antimicrobial agents except in two or less antimicrobial categories. Within XDR, pandrug-resistant (PDR) is the non-susceptibility of bacteria to all antimicrobial agents in all antimicrobial categories. [ 1 ]

  7. Drug resistance - Wikipedia

    en.wikipedia.org/wiki/Drug_resistance

    An illustrative diagram explaining drug resistance. Drug resistance is the reduction in effectiveness of a medication such as an antimicrobial or an antineoplastic in treating a disease or condition. [1] The term is used in the context of resistance that pathogens or cancers have "acquired", that is, resistance has evolved.

  8. Totally drug-resistant tuberculosis - Wikipedia

    en.wikipedia.org/wiki/Totally_drug-resistant...

    Totally drug-resistant tuberculosis (TDR-TB) is a generic term for tuberculosis strains that are resistant to a wider range of drugs than strains classified as extensively drug-resistant tuberculosis. Extensively drug resistant tuberculosis is tuberculosis that is resistant to isoniazid and rifampicin, any fluoroquinolone, and any of the three ...

  9. Rifampicin - Wikipedia

    en.wikipedia.org/wiki/Rifampicin

    Mycobacterial resistance to rifampicin may occur alone or along with resistance to other first-line antitubercular drugs. Early detection of such multidrug or extensively drug-resistant tuberculosis is critical in improving patient outcomes by instituting appropriate second-line treatments, and in decreasing transmission of drug-resistant TB. [54]