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Table 3 Bacterial species isolated and rate of occurrence of resistance to selected antimicrobials

From: Antimicrobial susceptibility profile of selected Enterobacteriaceae in wastewater samples from health facilities, abattoir, downstream rivers and a WWTP in Addis Ababa, Ethiopia

Species of bacteria

No. tested

Number and (%) resistant to antimicrobials tested

Amc

Cip

Gm

S

Sxt

Trm

Te

Amp

Cf

Fox

Cro

Su

Escherichia coli

18

15 (83.3)

5 (27.8)

–

–

–

7 (38.9)

13 (72.2)

18 (100)

18 (100)

10 (55.6)

5 (27.8)

6 (33.3)

Salmonella spp.

12

3 (25)

–

–

3 (25)

1 (8.3)

1 (8.3)

7 (58.3)

12 (100)

12 (100)

7 (58.3)

0

2 (16.7)

klebsiella pneumoniae

8

5 (62.5)

1 (12.5)

–

–

2 (12.5)

2 (25)

3 (37.5)

ND

ND

4 (50)

2 (25)

3 (37.5)

Klebsiella oxytoca

3

3 (100)

–

–

–

–

–

–

ND

ND

–

–

–

Enterobacter cloacae

6

5 (83.3)

3 (50)

1 (16.7)

1 (16.7)

2 (33.3)

1 (16.7)

3 (50)

6 (100)

6 (100)

5 (83.3)

2 (33.3)

3 (50)

Enterobacter aerogenes

3

–

–

–

–

–

–

1 (33.3)

3 (100)

3 (100)

2 (66.7)

1 (33.3)

0

Citrobacter spp.

4

4 (100)

3 (75)

2 (50)

2 (50)

2 (50)

2 (50)

4 (100)

4 (100)

4 (100)

3 (75)

3 (75)

3 (75)

  1. Amc amoxicillin+ clavulanic acid, Cip ciprofloxacin, Gm gentamicin, Sxt sulfamethoxazole + trimethoprim, Trm trimethoprim, Te tetracycline, Amp ampicillin, Cf cephalothin, Fox cefoxitin, Cro ceftriaxone, Su sulfisoxazole, ND not done