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Alpha hemolysin reporter system activation within human skin tissues. Representative images of cryosections of skin infected with S. aureus (pOS-hla-mCherry, red), stained with anti-Staphylococcus aureus antibody (green), phalloidin (gray) and DAPI (blue) after 2 (A), 24 (B) and 72 h of infection (C). mages were taken at the epidermis (upper images) and the dermis (lower images) (scale bar, 10 μm).
