Analysis of macrophage‐related cytokines and chemokines found that Tnf, Il1b, Il1a, Ilrn, Il17ra, Cxcl1, Cxcl2, Ccrl2, Ccl3, Ccl4, and Ccl9 expression significantly increased over the course of infection (Figure 3E). The gene discussed is IL1A; the disease is infection.