Bacterial burden after UK-66P and isotype control antibody treatment in lung, heart, liver, spleen, and kidneys 5 days after infection with S. aureus MA12 in the catheter-related infection model. The mice (7 or 9 per group) were inoculated via catheter with 1 × 107 CFU bacteria. *, P < 0.05 compared with IC-treated mice, by Kruskal-Wallis testing with posthoc Dunn's multiple-comparison testing. Data are graphed as a box-and-whisker plot.