SIRPA and infection: As shown in Figure 1 and Supplementary Figure S2A, in terms of numbers, MHC II+CD172a+CD163+ monocytes and MHC II+CD172a−CD163− conventional dendritic cells type I (cDC1) gradually decreased over the course of infection (Figures 1A,B), while MHC II+CD172a+CD163− conventional dendritic cell type II (cDC2) and neutrophils (MHC II−CD163−CD172+) significantly increased after infection (Figures 1C,D).