Similar responses were seen for the chemokines MCP-1 (Monocyte chemoattractant Protein-1) and RANTES (Regulated upon Activation, Normal T Cell Expressed and Presumably Secreted), but not for MIP-1α (Macrophage inflammatory protein-1α), all of which are needed for the recruitment of immune cells to the site of infection. The gene discussed is CCL2; the disease is infection.