Fig. 1. The relative numbers of isolates of Salmonella Typhi at Safdarjung hospital. (A) NALSand NALR-CIPI. (B) NALSand NALS-CIPI. Note: NALS= nalidixic acid susceptible(MIC ≤ 16 mg/L). NALR= nalidixic acid resistance (MIC ≥ 32 mg/L). CIPI= decreased ciprofloxacin susceptible (MIC > 0.064 mg/L).