extensively drug-resistant
No one knows the exact number of cases of the two types of drug-resistant TB, called MDR and XDR for multidrug-resistant and extensively drug-resistant.Donald G. McNeil Jr., The New York Times
XDR tuberculosis is caused by a strain of Mycobacterium tuberculosis resistant to isoniazid and rifampin (which defines MDR tuberculosis) in addition to any fluoroquinolone and at least one of the three following injectable drugs: capreomycin, kanamycin, and amikacin.Mario C. Raviglione and Ian M. Smith, The New England Journal of Medicine

Dictionary Entries Near XDR

Cite this Entry

“XDR.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/XDR. Accessed 26 May. 2024.

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