As the abscess lesion area was altered in LAC::lux ΔclfB-infected mice as early as 2 days post infection (Fig 1B), the role of ClfB during skin abscess formation was investigated by analysing skin excised at various time points throughout the first 96 hours of infection with either LAC::lux or LAC::lux ΔclfB. The gene discussed is LCT; the disease is Cutaneous abscess.