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. 2011 Feb;49(2):519–522. doi: 10.1128/JCM.01953-10

Table 1.

Definition of highly resistant Enterobacteriaceae

Species Definition of resistancea
ESBL CAR QUI AMG COT
Escherichia coli A A B B
Klebsiella spp. A A B B
Other A A B B B
a

ESBL, extended-spectrum beta-lactamases; CAR, carbapenems; QUI, fluoroquinolones; AMG, aminoglycosides; COT, co-trimoxazole. A, resistance against an antibacterial agent of the carbapenem group and/or presence of ESBL production is sufficient to define the microorganism as highly resistant; B, resistance against antibacterial agents from at least two of the indicated groups or specified antibacterial agents is required to define the microorganism as highly resistant.