Intended for healthcare professionals
EDITOR—As Parry et al point out,12 appropriate laboratory methods are crucial in detecting clinically important quinolone resistance.
We highlight the emergence of strains ofSalmonella enterica serovar Typhi (S Typhi) that show reduced susceptibility to the fluoroquinolones but are susceptible to nalidixic acid (minimum inhibitory concentration < 16 mg/l). In a review of all 692 isolates ofS Typhi sent to the Laboratory …
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