Antigen-specific IgG levels in mice at week 5 after <i>S</i>. <i>aureus</i> skin infection twice.

<p>Median fluorescence intensity (MFI) values reflect levels of IgG against 25 <i>S</i>. <i>aureus</i> antigens. Skin infections were induced by <i>S</i>. <i>aureus</i> isolate P (red squares) or <i>S</i>. <i>aureus</i> 8325–4 (green triangles); placebo skin infection (black circles) (n = 10 per group). Median values are indicated by horizontal lines. Stars indicate significant differences (<i>P</i> < 0.002) between mice with <i>S</i>. <i>aureus</i> isolate P skin infection and mice with placebo skin infection. Number signs indicate significant differences (<i>P</i> < 0.002) between mice with <i>S</i>. <i>aureus</i> 8325–4 skin infection and mice with placebo skin infection. Dollar signs indicate significant differences (<i>P</i> < 0.002) between mice with <i>S</i>. <i>aureus</i> isolate P skin infection and mice with <i>S</i>. <i>aureus</i> 8325–4 skin infection.