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. 2020 Jan 27;64(2):e01541-19. doi: 10.1128/AAC.01541-19

TABLE 1.

MICs and susceptibility of 414 Pseudomonas aeruginosa isolates from cystic fibrosis patients

Drug Value for the isolate group or type (mg/liter)
Susceptibility (%) by standard (n = 414)a
All strains (n = 414)
Pediatric (n = 111)
Adult (n = 288)
Mucoid (n = 112)
Small-colony variant (n = 63)
EUCAST
CLSI
MIC50 MIC90 MIC50 MIC90 MIC50 MIC90 MIC50 MIC90 MIC50 MIC90 S I R S I R
Murepavadin 0.12 2 0.12 1 0.25 4 0.12 2 0.25 8 ND ND ND ND ND ND
Cefepime 4 32 4 16 8 64 8 32 8 >128 75 25 75 11 14
Ceftazidime 2 64 2 8 2 128 2 8 2 128 80 20 80 4 11
Ceftazidime-avibactam 2 8 2 4 2 8 1 8 2 8 93 7 93 7
Ceftolozane-tazobactam 1 2 0.5 2 1 4 1 2 1 4 95 5 95 1 3
Piperacillin-tazobactam 4 128 4 32 4 >256 2 128 2 >256 81 19 81 7 12
Meropenem 0.25 16 0.25 4 0.5 16 0.5 16 0.5 16 76 12 12 76 6 18
Imipenem 2 32 2 16 2 32 2 32 1 32 68 32 59 8 32
Aztreonam 8 128 8 32 4 256 2 64 2 >256 77 23 62 14 23
Ciprofloxacin 1 8 0.5 4 2 8 1 8 2 16 39 61 53 17 30
Gentamicin 4 64 4 32 8 64 4 16 8 >128 53 47 53 17 30
Tobramycin 1 16 0.5 8 2 16 1 4 2 64 84 16 84 5 12
Amikacin 16 64 8 64 16 128 16 64 16 >128 47 21 32 68 14 18
Colistin 1 2 1 2 1 2 0.5 1 1 4 93 7 93 3 4
a

S, susceptible; I, intermediately susceptible; R, resistant; ND, no breakpoint defined.