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Table 2 In vitro activity of 7 antibiotics against 44 E. aerogenes and 8 E. cloacae carbapenems-resistant strains isolated in three Brazilians hospitals using microdilution and agar dilution

From: Clonality, outer-membrane proteins profile and efflux pump in KPC- producing Enterobacter sp. in Brazil

Antibiotics Range CIM 50 (mg/mL) CIM 90 (mg/mL) % resistance CIM 50 (mg/mL) CIM 90 (mg/mL) % resistance
Imipenem 0,25–128 8 32 93,2 16 64 100
Meropenem 0,25–128 8 32 93,2 16 16 87,5
Ertapenem 0,25–128 64 128 86,4 64 64 100
Tigecycline 0,03–16 0,25 2 0 1 2 0
Fosfomycina 0,25–256 16 64 0 16 32 0
Polymyxin B 0,003–16 1 2 0 1 2 0
Cefepime 0,25–128 ≥128 ≥128 100 ≥128 ≥128 100
  1. aMIC by agar dilution