There was a considerable difference between cytokine gene expression among these subsets after exposure: with subset 3 expressing a high amount of CSF2, IL1B, and TNF genes, which corresponds to the first wave of cytokines after infection; and subset 2 cells expressing genes related to the second wave of cytokines, namely IFNG, TGFB, and IL12B [55,56]. Here, IFNG is linked to infection.