PTPRC and infection: After 1x infection, the F4/80+ MHC‐II− eosinophil population (R2) comprised approximately 20% of the CD45+ DEC population, whilst in 4x mice, there was a significant increase to ~40% of CD45+ DEC and eosinophils constituted the most abundant DEC population (Fig. 1b–d; P < 0·01).