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Table 4 Resistance to selected antibiotics in ESBL-producing Gram-negative ESKAPE bacteria isolated from carriage and clinical samples in a district and tertiary hospital

From: Extended spectrum beta-lactamase mediated resistance in carriage and clinical gram-negative ESKAPE bacteria: a comparative study between a district and tertiary hospital in South Africa

Antibiotics

Tertiary hospital

District hospital

Medical ward

Surgical ward

Medical ward

Surgical ward

Carriage

Clinical

Carriage

Clinical

Carriage

Clinical

Carriage

MIC (μg/ml) range

No. resistant isolates (%)

MIC (μg/ml) range

No. resistant isolates (%)

MIC (μg/ml) range

No. resistant isolates (%)

MIC (μg/ml) range

No. resistant isolates (%)

MIC (μg/ml) range

No. resistant isolates (%)

MIC (μg/ml) range

No. resistant isolates (%)

MIC (μg/ml) range

No. resistant isolates (%)

Ampicillin

≥512

4 (100)

≥32

11 (100)

≥512

1 (100)

16–32

8 (100)

≥512

4 (100)

16- ≥ 32

2 (100)

≥512

1 (100)

Cefoxitin

8–512

3 (75)

4

7 (64)

16

1 (100)

8- ≥ 64

7 (88)

128 ≥ 512

4 (100)

≥64

2 (100)

≥512

1 (100)

Cefuroxime

≥512

4 (100)

≥64

11 (100)

128

1 (100)

8–64

8 (100)

256 ≥ 512

4 (100)

16- ≥ 64

2 (100)

≥512

1 (100)

Cefotaxime

≥512

4 (100)

≥64

11 (100)

128

1 (100)

1- ≥ 64

7 (88)

32- ≥ 512

4 (100)

< 1–32

2 (100)

≥512

1 (100)

Ceftazidime

512

4 (100)

≥64

8 (73)

256

1 (100)

1- ≥ 64

4 (50)

32- ≥ 512

4 (100)

≤1–16

2 (100)

≥512

1 (100)

Meropenem

0.5–2

2(50)

0.25

3 (27)

2

1 (100)

0.25 ≥ 16

4 (50)

0.25–16

2 (50)

0.25

0 (0)

16

1 (100)

Imipenem

4–8

4 (100)

0.25

3 (27)

16

1 (100)

0.5- ≥ 16

3 (37.3)

2–32

2 (50)

0.25–1

0 (0)

64

1 (100)

Ertapenem

1–2

4 (100)

0.5

0 (0)

16

1 (100)

≤0.5

0 (0)

0.25–8

3 (75)

0.5

0 (0)

64

1 (100)

Amikacin

8–128

4 (100)

8

2 (18)

64

1 (100)

2- ≥ 64

4 (50)

8–128

2 (100)

2

0 (0)

≥512

1 (100)

Gentamicin

128

4 (100)

≥16

8 (73)

8

1 (100)

1- ≥ 16

4 (50)

4–16

4 (100)

1

0 (0)

≥512

1 (100)

Ciprofloxacin

64–512

4 (100)

≥4

6 (55)

32

1 (100)

0.25- ≥ 4

5 (45)

0.5–64

3 (75)

≤0.25

0 (0)

32

1 (100)

Tigecycline

16–64

4 (100)

1

4 (36)

16

1 (100)

0.5- ≥ 8

3 (37.3)

2–64

4 (100)

1

0 (0)

8

1 (100)

Nitrofurantoin

≥512

4 (100)

128

9 (82)

≥512

1 (100)

≥512

6 (55)

≥512

4 (100)

16- ≥ 512

0 (0)

≥512

1 (100)

Colistin

8–512

4 (100)

0.5

0 (0)

8

1 (100)

≤0.5

0(0)

0(0)

0(0)

≤0.5

0 (0)

≤0.5

0