High usage of topical fusidic acid and rapid clonal expansion of fusidic acid-resistant Staphylococcus aureus: a cautionary tale.

Williamson, Deborah A; Monecke, Stefan; Heffernan, Helen; Ritchie, Stephen R; Roberts, Sally A; Upton, Arlo; Thomas, Mark G; Fraser, John D · Clin Infect Dis · 2014

retrospective_cohort · Level III

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Abstract

Our aim was to assess national prescribing trends and determine longitudinal resistance patterns for topical antimicrobials in New Zealand. We observed a dramatic increase in fusidic acid (FA) resistance, and clonal expansion of FA-resistant Staphylococcus aureus. This increase was concurrent with a significant national increase in topical FA dispensing.

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