Table 1 Susceptibility testing of 38 P. aeruginosa isolates.

From: Genomic epidemiology and characterization of difficult-to-treat resistant Pseudomonas aeruginosa isolates co-harboring blaOXA-50 and crpP causing bronchiectasis

Antibiotics

MIC range (mg/L)

MIC50 (mg/L)

MIC90 (mg/L)

S (N/%)

R (N/%)

Piperacillin/tazobactam

4/4–128/4

128/4

> 128/4

3 (7.9%)

24 (63.2%)

Ceftazidime

2–128

16

128

12 (31.6%)

19 (50.0%)

Cefpirome

2–128

32

> 128

8 (21.1%)

25 (65.8%)

Aztreonam

4–128

32

> 128

4 (10.5%)

22 (57.9%)

Imipenem

1–32

32

> 32

5 (13.2%)

32 (84.2%)

Meropenem

0.03–32

8

> 32

7 (18.4%)

22 (57.9%)

Gentamicin

2–128

8

32

12 (31.6%)

11 (28.9%)

Amikacin

2–32

8

16

37 (97.4%)

0

Tobramycin

1–128

2

4

37 (97.4%)

1 (2.6%)

Ciprofloxacin

0.5–64

4

64

3 (7.9%)

30 (78.9%)

Polymyxin B

0.06–2

0.25

1

0

  1. MIC, minimal inhibitory concentration; S, susceptible; R, resistant.