Figure 2

Arthritis development in C57BL/6 mice infected with S . aureus strains . Animals were infected with ATCC 19095 SEC⁺, N315 ST5 TSST-1⁺, S-70 TSST-1⁺ or ATCC 51650 TSST-1⁺. (a) Arthritis incidence and (b) clinical score were daily evaluated. Data is presented by mean ± SE of 5-9 mice. * represents the difference with the group infected with the non arthritogenic ATCC 51560 TSST-1⁺ strain. p < 0.05.