IFNAR1 and B-cell chronic lymphocytic leukemia: We treated Ifnar1-deficient 129S2/SvPas mice with CLL to deplete the population of phagocytic cells, and showed that, following intradermal infection with RVFV, the depleted mice allowed reduced RVFV replication compared to control mice, as assessed both by in vivo imaging and viral titration from blood samples.