FN1 and infection: According to preliminary results of the immunocytochemical and the immunofluorescence assay, the production rates for fibronectin, type I collagen, filamentous actin, and vimentin in granuloma macrophages were not affected by mycobacterial loads, nor were those in granuloma fibroblasts from mice following infection with BCG vaccine in vivo or in peritoneal macrophages and splenic fibroblasts from the control group of intact mice (Figures 12(a)–12(e) and 13).