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Table 3 Comparison of in vitro drug susceptibility profiles between M. abscessus subspecies abscessus and M. abscessus subspecies massiliense isolates

From: Epidemiology of pulmonary disease due to nontuberculous mycobacteria in Southern China, 2013–2016

Antimicrobial agents No. of resistant isolates (%) P value
M. abscessus subspecies abscessus (n = 136) M. abscessus
subspecies massiliense
(n = 95)
Amikacin 3 (2.2) 2 (2.1) 1.000
Clarithromycin 6 (4.4) 3 (3.2) 0.740
Linezolid 6 (4.4) 2 (2.1) 0.476
Tobramycin 6 (4.4) 2 (2.1) 0.476
Cefoxitin 46 (33.8) 24 (25.3) 0.164
Ciprofloxacin 86 (63.2) 68 (71.6) 0.186
Doxycycline 127 (93.4) 94 (98.9) 0.050
Imipenem 134 (98.5) 95 (100.0) 1.000
  1. The breakpoints to establish susceptibility and resistance for drugs were followed as recommendation from Clinical and Laboratory Standards Institute (CLSI-M24-A2)