Microbial Diversity and Antibiotic Susceptibility Pattern of Bacteria Associated with Motorcycle Helmets

Table 5

Antibiotic susceptibility pattern of Gram-negative isolates.

Serial number	Antibiotics used	Susceptibility pattern
		E. coli (n = 54)		Klebsiella spp. (n = 33)		P. aeruginosa (n = 19)		Salmonella spp. (n = 19)		Enterobacter aerogenes (n = 38)
		S (%)	R (%)	S (%)	R (%)	S (%)	R (%)	S (%)	R (%)	S (%)	R (%)
1	Chloramphenicol	66.7	33.3	84.8	15.2	89.5	10.5	78.9	21.1	94.7	5.3
2	Imipenem	88.9	11.1	87.9	12.1	84.2	15.8	100.0	0.0	97.4	2.6
3	Amikacin	92.6	7.4	93.9	6.1	63.2	36.8	89.5	10.5	78.9	21.1
4	Ciprofloxacin	83.3	16.7	75.8	24.2	78.9	21.1	73.7	26.3	86.8	13.2
5	Azithromycin	75.9	24.1	45.5	54.5	89.5	10.5	89.5	10.5	78.9	21.1
6	Nitrofurantoin	53.7	46.3	39.4	60.6	42.1	57.9	42.1	57.9	44.7	55.3
7	Tetracycline	72.2	27.8	84.8	15.2	36.8	63.2	68.4	31.6	52.6	47.4
8	Ceftazidime	85.2	14.8	81.8	18.2	68.4	31.6	94.7	5.3	94.7	5.3
9	Gentamicin	98.1	1.9	100.0	0.0	26.3	73.7	52.6	47.4	97.4	2.6
10	Cotrimoxazole	59.3	40.7	60.6	39.4	78.9	21.1	47.4	52.6	34.2	65.8

S = sensitive; R = resistant.