CD24 and infection: T cells (Ly6G-CD11c-CD11b-MHC-II-CD24-) and B cells (Ly6G-CD11c-CD11b-MHC-II+CD24+) were subsequently recruited into the BALF by a viral infection on days 3 to 10, but the increased T cells and B cells following by infection strongly inhibited by LDRT in the 1.8 Gy group on days 6 and 10, respectively (Figures 4E, F).