Acquisition of Rifampin Resistance in Pulmonary Tuberculosis.

Abstract:

:Mycobacterium tuberculosis strains with spontaneous mutations conferring resistance to rifampin (RIF) are exceedingly rare, and fixed drug combinations typically prevent augmentation of resistance to single drugs. Fourteen newly diagnosed tuberculosis patients were treated with RIF alone for 14 days, and bacterial loads, including mutation frequencies, were determined. A statistical model estimated that 1% of the remaining viable mycobacteria could be RIF resistant after 30 days of monotherapy. This indicates that temporal and spatial windows of RIF monotherapy due to uneven drug distribution within lung lesions could contribute to the acquisition of resistance to RIF.

authors

Kayigire XA,Friedrich SO,van der Merwe L,Diacon AH

doi

10.1128/AAC.02220-16

subject

Has Abstract

pub_date

2017-03-24 00:00:00

issue

4

eissn

0066-4804

issn

1098-6596

pii

AAC.02220-16

journal_volume

61

pub_type

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