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Table 2 Antimicrobial susceptibility pattern of Salmonella and Shigella spp. isolated from stool specimens of asymptomatic food handlers working in Haramaya University cafeterias, Eastern Ethiopia from August 2015 to January 2016

From: Prevalence and antimicrobial susceptibility pattern of Salmonella and Shigella species among asymptomatic food handlers working in Haramaya University cafeterias, Eastern Ethiopia

Bacterial isolates

Total isolates

Antimicrobial susceptibility (n  %)

Pattern

AM

CRO

CAZ

CHL

CIP

COT

GN

NOR

TE

S. typhi

9

S

2 (22.2)

7 (77.8)

9 (100)

1 (11.1)

6 (66.7)

1 (11.1)

7 (77.8)

8 (88.9)

1 (11.1)

I

0

0

0

0

0

0

0

0

0

R

7 (77.8)

2 (22.2)

0

8 (88.9)

3 (33.3)

8 (88.9)

3 (22.2)

1 (11.1)

8 (88.9)

S. paratyphi

4

S

0

3 (75)

3 (75)

0

4 (100)

1 (25)

2 (50)

2 (50)

0

I

0

0

1 (25)

2 (50)

0

0

0

0

2 (50)

R

4 (100)

1 (25)

0

2 (50)

0

3 (75)

2 (50)

2 (50)

2 (50)

Other Salmonella spp.

2

S

0

2 (100)

2 (100)

0

2 (100)

1 (50)

2 (100)

2 (100)

1 (50)

I

0

0

0

1 (50)

0

0

0

0

0

R

2 (100)

0

0

1 (50)

0

1 (50)

0

0

1 (50)

Shigella spp.

6

S

4 (66.7)

5 (83.3)

4 (66.7)

2 (33.3)

6 (100)

2 (33.3)

4 (66.7)

5 (83.3)

1 (16.7)

I

0

0

1 (16.7)

1 (16.7)

0

0

0

0

0

R

2 (33.3)

1 (16.7)

1 (16.7)

3 (50)

0

4 (66.7)

2 (33.3)

1 (16.7)

5 (83.3)

Total

21

S

6 (28.6)

17 (81)

18 (85.7)

3 (14.3)

18 (85.7)

5 (23.8

15 (71.4)

17 (81)

3 (14.3)

I

0

0

2 (9.5)

4 (19)

0

0

0

0

2 (9.5)

R

15 (71.4)

4 (19)

1 (4.8)

14 (66.7)

3 (14.3)

16 (76.2)

6 (28.6)

4 (19)

16 (76.2)

  1. S sensitive, I intermediate, R resistance, AM ampicillin, CRO ceftriaxone, CAZ ceftazidime, CHL chloramphenicol, CIP ciprofloxacin, COT cotrimoxazole, CN gentamicin, NOR norfloxacin, TE tetracycline