CCL28 and infection: Although neutrophil abundance greatly increased in the lungs during Ab infection (Figure 2—figure supplement 1A), no other cell types profiled varied between wild-type and Ccl28−/− mice before or 1 day post-Ab infection (Figure 2—figure supplement 1B–D and Figure 2—figure supplement 2A–C), besides a slight deficiency in lung eosinophil levels in uninfected Ccl28−/− mice (Figure 2—figure supplement 1B).