Biofilm formation by the UPEC isolates UTI89 and F11 ± SAA.

<p>Biofilm levels were quantified by measuring A₅₆₂ after 48 h static growth in M9 medium ±0, 0.5, 1 and 5 µg/ml SAA. *, <i>p</i><0.001, as determined by Student's <i>t</i> test. Results show the mean values ± SEM of three independent experiments performed in quadruplicate.