IL1B and infection: Consistent with the results of hMDM typing, treatment with DNaseI-strongly improved the ability of S. epidermidis 1457 biofilms to induced IL1B expression in hMDM, which, though still being lower compared to 1457-M10 infection, was not different from that observed after infection with S. epidermidis 1457ΔatlE (Fig. 5C).