RAG2 and pneumonia: In the pneumonia model using Rag2 KO mice (Figure 7G), the degree to which inflammation was alleviated was similar in the BQ123-MDSC and PBS-Neu groups (Figures 7H–M), as indicated by the severity of histological inflammation, eosinophil frequency, total BALF cell number, absolute eosinophil number, and IL5 and IL13 production in BALF, as well as the mRNA levels of IL5 and IL13.