Figure 4: Selection of optimal MRSA infection concentration and construction of osteomyelitis model. A: Inject 1 separately × 104, 1 × 105, 1 × 106, 1 × 107, 1 × 108 and 1 × 109 CFU/mL MRSA was used to construct an osteomyelitis model. B: ELISA detection of serum C-reactive protein content. C: Construct osteomyelitis models with optimal concentrations of MRSA, KO sdrc, and MRSA+KO sdrc. D: ELISA detection of serum C-reactive protein content.