In addition, intratracheal instillation of Staphylococcus haemolyticus strain 12 resulted in a significant increase of lung neutrophil infiltration, pulmonary fibrosis score and lung area of epithelial cell apoptosis in TGFβ1 TG mice compared to intratracheal instillation of Staphylococcus epidermidis, which contains transglycosylases lacking the corisin sequence (Supplementary Fig. 3a–i). Here, TGFB1 is linked to pulmonary fibrosis.