However, CD11b+/Ly6C+ cells were found in the peritoneal cavity at 2-wpi, and some expressed the macrophage marker F4/80 (Fig. 2a) At 8 and 12 weeks the majority of F480+PD-L2+ cells expressed medium levels of Ly6C, suggesting that a Ly6C+ population converts into mature macrophages during helminth infection (Fig. 2a). Here, ITGAM is linked to helminthiasis.