Fig. 1

Tregs in mice with S. aureus arthritis. a, Experimental set-up for the evaluation of Tregs proportions during the natural course of S. aureus arthritis. b, Tregs expressed as frequency of CD25⁺FoxP3⁺ of the CD4⁺ lymphocytes in blood, spleen and lymph nodes in healthy uninfected mice and in mice with S. aureus arthritis. In panel B, data are shown as median, whiskers = min to max. Statistical calculations were made using the Mann-Whitney U-test and one-way ANOVA, ** P < 0.01, ***P < 0.001