Immune cell—recruiting chemokines and cytokines, such as IP-10/CXCL-10, MCP-1/CCL-2, MIP-1α/CCL-3, RANTES/CCL-5, can be strongly induced by MERS-CoV, showing higher inducibility in human monocyte—derived macrophages by MERS-CoV as compared to than SARS-CoV infection [41]. The gene discussed is CCL2; the disease is severe acute respiratory syndrome.