Endemic and epidemic Acinetobacter baumannii clones: a twelve-year study in a tertiary care hospital

BMC Microbiology

Table 2 β-lactamase genes and associated insertion sequences in A. baumannii with an imipenem MIC of >32 μg/ml

PFGE type	MLST sequence type	*Acinetobacter* -derived cephalosporinase type	*OXA* -51 type	Acquired carbapenem hydrolyzing oxacillinase	Metallo beta-lactamase
EE1	2	Not typed	Not typed	ISAba2−OXA-58−ISAba3 ^f	ND^g
EE10	2	Not typed	Not typed	OXA-40	ND
EE10^*a	2	Not typed	Not typed	OXA-40	ND
EE15	3	Not typed	Not typed	ISAba2−OXA-58−ISAba3	ND
EE9	80	ISAba1−ADC-1^c	OXA-64/99/132^d	OXA-40	ND
Ab9^b	80	ISAba1−ADC-1	OXA-64/99/132	OXA-40	ND
EE11	15	ADC-2	ISAba1−OXA-64/99/132^e	ISAba2−OXA-58−ISAba3	ND
Ab54^b	15	ADC-2	ISAba1−OXA-64/99/132	ISAba2−OXA-58−ISAba3	ND

^a EE10 and EE10* had the same PFGE type but different MLVA type.
^bAb9 and Ab54 were epidemic PFGE types detected in other hospitals.
^cISAba1 was detected upstream of ADC-1.
^dThe OXA-64/99/132 sequence was consistent with OXA-64, OXA-99 and OXA-132 [23].
^eISAba1 was detected upstream of OXA-64/99/132.
^fISAba2 and ISAba3 were detected upstream and downstream of OXA-58 respectively.
^gND: not detectable.

ISSN: 1471-2180