Genetic Diversity of Imipenem-Resistant Acinetobacter baumannii Infections at an Intensive Care Unit

Table 5

Minimal inhibitory concentrations of tigecycline against 80 strains of carbapenem-resistant Acinetobacter baumannii (MIC50 = 2 µg/ml, MIC90 = 4 µg/ml). Tigecycline susceptible strains represented 53.8% of the complete cohort.

MIC (µg/ml)	No. of isolates (%)	Cumulative no. of isolates (%)
1	12 (15)	12 (15)
2	31 (38.8)	43 (53.8)
3	26 (32.5)	69 (86.3)
4	4 (5)	73 (91.3)
6	1 (1.3)	74 (92.5)
8	2 (2.5)	76 (95)
16	3 (3.8)	79 (98.8)
32	1 (1.3)	80 (100)