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Table 2 Resistance pattern of M. tuberculosis isolates to INH and RIF with TB patient category, South Gondar Zone, Amhara region, northwest Ethiopia (2015–2017)

From: Molecular detection of Mycobacterium tuberculosis sensitivity to rifampicin and isoniazid in South Gondar Zone, northwest Ethiopia

Drug resstance pattern New cases (%)
(n = 90)
Retreatment (%)
cases (n = 21)
Total (%)
(N = 111)
Any Susceptible 75 (83.3) 16 (76.2) 91 (82.0))
Any resistance 15 (16.7) 5 (23.8) 20 (18.0)
INHmono- resistance 15 (16.7) 3 (14.3) 18 (16.2)
INH Susceptible 75 (83.3) 16 (76.2) 91 (82.0)
RIF mono-resistance 0 (0.0) 0 (0.0) 0 (0.0)
RIF Susceptible 90 (100) 19 (90.5) 109 (98.2)
MDR (INH + RIF resistance) 0 (0.0) 2 (9.5) 2 (1.8)
Hetroresistance 6 (6.7) 0 (0.0) 9 (8.1)
  1. INH Isoniazid, RIF Rifampicin, MDR Multidrug resistance