Prevalence and Antimicrobial Susceptibility Profile of Salmonella Serovars Isolated from Slaughtered Cattle in Addis Ababa, Ethiopia

Table 3

Salmonella serovar distribution and frequency of resistance to various antimicrobials.

Antimicrobials tested	Salmonella serovars and No. (%) of isolates resistant to various antimicrobials (n=28)
	Dublin	Virchow	Typhimurium	Saintpaul	Braenderup	Haifa	Kottbus	Kentucky	Mikawasima	I:ROUGH-O:g,p:-	No. (%) resistant
	n=10	n=5	n=3	n=2	n=2	n=2	n=1	n=1	n=1	n=1
Amp	10 (100)	3 (60)	2 (66.7)	2 (100)	-	-	-	1 (100)	-	1 (100)	19 (67.9)
Amc	10 (100)	3 (60)	2 (66.7)	2 (100)	-	-	-	1 (100)	-	1 (100)	19 (67.9)
Cf	10 (100)	3 (60)	2 (66.7)	2 (100)	-	-	1 (100)	1 (100)	-	1 (100)	20 (71.4)
Cro	-	-	-		-	-	-		-	-	0
Fox	1 (10)	-	-		-	-	-		-	1 (100)	2 (7.1)
An	-	1 (20)	-	-	1 (50)	1 (50)	-	-	1 (100)	-	4 (14.3)
Gm	1 (10)		-	-	-	-	-	1 (100)	-	-	2 (7.1)
K	3 (30)	5 (100)	2 (66.7)	1 (50)	1 (50)	2 (100)	1 (100)	1 (100)	-	-	16 (57.1)
S	10 (100)	5 (100)	2 (66.7)	2 (100)	2 (100)	1 (50)	1 (100)	1 (100)	1 (100)	-	25 (89.3)
Sxt	-	-	1 (33.3)	-	-	-	-	-	-	-	1 (3.6)
Cip	-	1 (20)	2 (66.7)	2 (100)	2 (100)	1 (50)	-	1 (100)	1 (100)	-	10 (35.7)
Na	1 (10)	-	-	-	-	-	-	1 (100)		-	2 (7.1)
Te	-	2 (40)	1 (33.3)	2 (100)	2 (100)	1 (50)	1 (100)	1 (100)	1 (100)	-	11 (39.3)
C	-	-	-	-	-	-	-	-	-	-	0
Tmp	1 (10)	-	1 (33.3)	-	-	-	-	-	-	-	2 (7.1)
Su	1 (10)	2 (40)	-	2 (100)	2 (100)	2 (100)	1 (100)	1 (100)	1 (100)	-	12 (42.9)
Nitro	-	2 (40)	2 (66.7)	-	1 (50)	2 (100)	1 (100)	1 (100)	1 (100)	-	10 (35.7)

An: amikacin, Amp: ampicillin, Amc: amoxicillin+clavulanic acid, C: chloramphenicol, Cro: ceftrioxone, Cf: cephalothin, Cip: ciprofloxacin, Fox: cefoxitin, Gm: gentamicin, K: kanamycin, Sxt: sulfamethoxazole+trimethoprim, Tmp: trimethoprim, Te: tetracycline, Suv: sulfisoxazole, S: streptomycin, Nitro: nitrofurantoin, and Na: nalidixic acid. Isolates intermediately resistant were also considered resistant.