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. 2002 Apr;40(4):1481–1486. doi: 10.1128/JCM.40.4.1481-1486.2002

TABLE 4.

Cyclohexane resistance in nalidixic acid-resistant isolates

Substitution at codon/cyclohexane tolerance No. of isolates inhibited by ciprofloxacin at MIC (mg/liter) of:
≤1.0 ≥2.0
Ser83/sensitive 32 0
Ser83/resistant 2 15
Asp87/sensitive 47 1
Asp87/resistant 2 0