Figure 3. Immunohistochemical photomicrographs and quantification of iNOS and IL-17 positive cells of STAg-pretreated and infected mice.

The C57BL/6 mice were STAg pretreated and infected and the ilea were collected on day 8 p.i. for iNOS or IL-17 immunostaining. The quantification of iNOS+ (A, B and C) or IL-17+ (D, E and F) cells was performed in 40 microscopic fields per tissue section using a 40 x objective. *p < 0.05 (Statistically different from values observed for the same cell phenotype obtained from PBS-pretreated mice, Unpaired Student’s t-test).