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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