LCT and infection: To investigate the relative contributions of glucose and other carbohydrates to S. aureus growth or survival during infection, C57BL/6 mice were subcutaneously infected with 1 × 107 CFU of WT or ΔG4, ptsH-H15A, ptsH-H15A ΔglcU, or ΔglcU mutant S. aureus LAC.