Table 1

Genetic and phenotypic features ofA. baumanniiBrazilian strains analyzed in this study
Strains (n) PFGE RQ of carO CarO classification blaaOXA ISAba1 ISAba1+blaOXAb Hodge test Resistance phenotype MIC of Imipenem (μg/mL)
AC2-RJ (1) B 0.41 CarOa blaOXA-23 + + + ATM CAZ CIP MEM IPM EPM TMP GEN AMK STR ≥ 32
AC1-RJ (1) A 1.33 CarOa blaOXA-13 + - - ATM CAZ FEP CIP MEM TMP STR 1.0
AC3-RJ (3) C 1.21 CarOa blaOXA-66 + - - ATM CAZ FEP CIP MEM TMP AMK STR 1.0
AC10-RJ (1) F 1.23 CarOa blaOXA-10 + - - ATM CIP MEM TMP GEN AMK STR 1.0
AC6-RJ (3) D 1.07 Undefined CarO blaOXA-13 + - - ATM CAZ FEP CIP MEM IPM EPM TZP TMP GEN AMK STR 32
AC9-RJ (1) E 0.10 CarOb blaOXA-10 + - - ATM CIP MEM TMP GEN STR 0.25
AC16-RJ (2) G 0.86 CarOb blaOXA-10 + - - ATM CAZ FEP CIP MEM TZP TMP AMK STR 1.5
AC72-RJ (1) H 0.94 CarOa blaOXA-23 + + + ATM CAZ CIP MEM IPM EPM TMP AMK STR ≥ 32
AC60-MA (1) L 0.05 Disrupted by ISAba1 - + - - MEM EPM 0.20
AC62-MA (2) J 0.45 CarOa blaOXA-23 + + + ATM CAZ FEP CIP MEM IPM EPM TZP TMP AMK STR ≥ 32
AC65-MA (1) M 0.50 CarOb blaOXA-23 + + + ATM CAZ FEP CIP MEM IPM EPM TZP TMP GEN AMK STR ≥ 32
AC67-MA (8) I 0.65 Undefined CarO blaOXA-23 + + + CAZ FEP CIP MEM IPM EPM TZP TMP GEN AMK STR ≥ 32
AC70-MA (1) N 1.55 CarOa blaOXA-66 + - - ATM CAZ FEP CIP MEM EPM TZP TMP GEN AMK STR 1.0
AC71-MA (2) K 0.45 Undefined CarO blaOXA-23 + + + CAZ FEP CIP MEM IPM EPM TZP TMP GEN AMK STR ≥ 32
ATCC 19606 1.00 CarOa 0.25

aall isolates also harboured the blaOXA-51 gene.

bno blaOXA-51 was associated with ISAba1.

ATM aztreonam, CAZ ceftazidime, FEP cefepime, CIP ciprofloxacin, MEM meropenem, IPM imipenem, EPM ertapenem, TZP piperacillin/tazobactam, TMP trimethoprim, GEN gentamicin, AMK amikacin, STR streptomycin.

Fonseca et al.

Fonseca et al. BMC Microbiology 2013 13:245   doi:10.1186/1471-2180-13-245

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