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Table 4 Salmonella serovar distribution and rate of resistance to antimicrobial agents

From: Non-typhoidal Salmonella serovars in poultry farms in central Ethiopia: prevalence and antimicrobial resistance

Antimicrobial agents

Salmonella serovars and resistance ratea

Total No. (%) resistant

S. Saintpaul

(n = 20)

S. Typhimurium

(n = 3)

S. Kentucky

(n = 2)

S. Haifa

(n = 1)

No. resistant (%)

No. resistant (%)

No. resistant (%)

No. resistant (%)

Ampicillin

9 (45)

0

2 (100)

0

11 (42.3)

Amoxicillin+clavulanic acid

9 (45)

0

2 (100)

0

11 (42.3)

Chloramphenicol

10 (50)

0

1 (50)

0

11 (42.3)

Cephlothin

10 (50)

0

2 (100)

0

12 (46.2)

Ciprofloxacin

0

0

2 (100)

0

2 (7.7)

Cefoxitin

0

0

0

0

0

Gentamicin

0

0

2 (100)

0

2 (7.7)

Kanamycin

8 (40)

2 (66.7)

0

1 (100)

11 (42.3)

Sulfamethoxazole+trimethoprim

0

0

0

1 (100)

1 (3.9)

Trimethoprim

0

0

0

1 (100)

1 (3.9)

Tetracycline

4 (20)

1 (33.3)

2 (100)

1 (100)

8 (30.8)

Sulfisoxazole

18 (90)

3 (100)

2 (100)

1 (100)

24 (92.3)

Streptomycin

18 (90)

3 (100)

2 (100)

1 (100)

24 (92.3)

Nitrofurantoin

5 (25)

1 (33.3)

0

1 (100)

7 (26.7)

Nalidixic acid

2 (10)

0

2 (100)

1 (100)

5 (19

Neomycin

3 (15)

0

0

0

3 (11.5)

  1. aIsolates with intermediate susceptibility were also considered resistant for this analysis