Impact of Low-Level Resistance to Fluoroquinolones Due to <i>qnrA1</i> and <i>qnrS1</i> Genes or a <i>gyrA</i> Mutation on Ciprofloxacin Bactericidal Activity in a Murine Model of <i>Escherichia coli</i> Urinary Tract Infection
ABSTRACT We investigated the impact of low-level resistance to fluoroquinolones on the bactericidal activity of ciprofloxacin in a murine model of urinary tract infection. The s...