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Table 3 Analysis of MAS-PCR in 62 isolates with INH resistance by proportional DST method, in relation to DST/MODS results

From: Evaluation of microscopic observation drug susceptibility assay for diagnosis of multidrug-resistant Tuberculosis in Viet Nam

 

MAS-PCR

DST/MODS

 

KatG

inhA

KatG and inhA

WT

Indefinite

Total

 

Resistant

33

03

01

07

01

45

 

Sensitive

06

08

00

03

00

17

 

All strains

39

11

01

10

01

62

  1. Of 17 isolates with INH sensitive by DST/MODS, 8 isolates (47.1%) had a mutation on inhA promoter gene and 6 isolates (35.3%) carried amutation on katG gene