Table 3. Minimum inhibitory concentration of S. Typhi and S. Paratyphi A for ciprofloxacin and ceftriaxone for all the isolates collected in the study period (n = 610).

Antimicrobial agent	MIC50(μg/ml)		MIC90 (μg/ml)		Median MIC (μg/ml)		(Max-Min) (μg/ml)
	S.Typhi	S. Paratyphi A	S.Typhi	S. Paratyphi A	S.Typhi	S. Paratyphi A	S.Typhi	S.Paratyphi A
Ciprofloxacin	0.38	0.75	8	1	0.38	0.75	0.004->32	0.19–8
Ceftriaxone	0.016	0.094	0.047	0.19	0.016	0.094	0.019–0.75	0.023–0.75

CLSI 2015 MIC breakpoints Susceptible/Resistant: Ciprofloxacin ≤ 0.06/> 0.06 μg/ml, Ceftriaxone ≤ 1/> 1 μg/ml.