Table 3 Frequency distribution of carbapenemase genotypes and their association with antimicrobial resistance among PCR positive isolates from burn patients
Carbapenemase genotypes | Isolates | N = 44 | IMP (MIC µg/ml) | MEM (MIC µg/ml) | MAR Index |
|---|---|---|---|---|---|
OXA-48 | Pseudomonas aeruginosa | 4 | > 8 | 4 to > 8 | 0.82 to 0.88 |
Klebsiella pneumoniae | 2 | 2 to > 8 | > 4 | 0.76 | |
Acinetobacter baumannii | 1 | > 16 | > 8 | 0.82 | |
Pseudomonas fluorescence | 1 | > 8 | > 8 | 0.82 | |
KPC type | Escherichia coli | 4 | 4 to > 16 | 2 to > 8 | 0.82 to 0.88 |
Enterobacter cloacae | 3 | 4 to > 16 | 2 to > 8 | 0.82 to 0.88 | |
Klebsiella pneumoniae | 3 | 4 to > 8 | 2 to > 4 | 0.82 to 0.88 | |
NDM type | Klebsiella pneumoniae | 1 | > 4 | > 4 | 0.82 |
Klebsiella oxytoca | 1 | > 8 | > 8 | 0.82 | |
Acinetobacter baumannii | 1 | > 8 | > 8 | 0.76 | |
Acinetobacter pittii | 1 | > 8 | > 8 | 0.76 | |
Proteus mirabilis | 1 | 1 | > 2 | 0.76 | |
VIM type | Pseudomonas aeruginosa | 11 | 4 to > 16 | 2 to > 16 | 0.71 to 0.88 |
Citrobacter freundii | 2 | 2 to > 4 | 2 to > 4 | 0.76 to 0.88 | |
Proteus mirabilis | 2 | 8 to > 16 | > 4 | 0.82 to 0.88 | |
Klebsiella oxytoca | 1 | > 2 | > 1 | 0.82 | |
Klebsiella pneumoniae | 1 | > 8 | > 4 | 0.76 | |
Pseudomonas putida | 1 | > 16 | > 16 | 0.88 | |
Serratia marcescens | 1 | > 4 | > 4 | 0.76 | |
KPC-VIM type | Proteus mirabilis | 1 | > 8 | > 4 | 0.76 |
OXA48-KPC-VIM type | Enterobacter cloacae | 1 | > 16 | > 16 | 0.82 |