Technical Report on critical concentrations for drug susceptibility testing of isoniazid and the rifamycins (rifampicin, rifabutin and rifapentine)

Mikashmi · February 9, 2021, 3:40pm

Please see below the new updated technical report by WHO on critical concentrations for INH and RIF DST.
The rifampicin CCs for 7H10 and MGIT were lowered from 1 to 0.5 mg/L and guidance is provided about how to resolve discordant results for the borderline resistance mutations in rpoB .

https://www.who.int/publications/i/item/technical-report-on-critical-concentrations-for-drugsusceptibility-testing-of-isoniazid-and-therifamycins-(rifampicin-rifabutin-and-rifapentine)

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Technical Report on critical concentrations for drug susceptibility testing of isoniazid and the rifamycins (rifampicin, rifabutin and rifapentine)

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