Fig. 6.

Effect of the cidA mutation on S. aureus in vivo biofilm formation. The ability of UAMS-1 (gray bar), KB1050 (cidA mutant; striped bar), and UAMS-929 (sarA mutant; black bar) to form biofilm in vivo was assessed in a previously published murine model (15) of catheter-associated infection. Biofilm formation in vivo is expressed as the mean number of bacteria recovered from the implanted catheters of each group of mice (recovered cfu per catheter) after 10 days of infection. Error bars represent the SEM. The numbers located above each bar represent the mean recovered cfu per catheter.