IL13 and infection: We first took the approach of analysing individual cell types within BALB/c and Il17rb–/– mice and found equivalent increases in total and IL-13-expressing ILCs in the mesenteric lymph node (MLN, Figure 1E,F) in both strains at day 14 post-infection, and similar increases in the number of Siglec-F-CD11b+Ly6C/G+ myeloid cells in the peritoneal lavage (PL) (Figure 1G).