We found that NK cells, especially for NK_Naive, NK_Memory and NK_CD56(dim), in brucellosis patients potentially underwent migration (Figure 6G, Figure S8D), with several migration‐related genes highly expressed like CCL4, CXCR5, CCL18, CXCL2, and so forth (Figure 6G). The gene discussed is NCAM1; the disease is brucellosis.