The KPC-2-positive strains were resistant to imipenem (MIC, 4 - 8 mg / L), resistance at intermediate level with meropenem (MIC, 2mg / L), ceftazidime (>512mg / L) and ciprofloxacin (MIC, 16 - 256mg/L). Two KPC-2 strains were still sensitive to colistin (MIC, 0.25mg / L).