Nalidixic acid screening test in detection of decreased fluoroquinolone susceptibility in Salmonella typhi isolated from blood.


OBJECTIVE To determine the validity of nalidixic acid screening test in the detection of high MICs of fluoroquinolone against Salmonella(S.) typhi isolated from blood and correlate zone diameters of ofloxacin with that of MIC value for nalidixic acid sensitive and resistant strains. DESIGN Cross-sectional analytical study. PLACE AND DURATION OF STUDY… (More)


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