title: Innate immunity.
mesh_terms: D000818:Animals; D001770:Blood Bactericidal Activity; D003165:Complement System Proteins / Q000276:immunology; D016207:Cytokines / Q000502:physiology; D006801:Humans; D007111:Immunity, Cellular; D007113:Immunity, Innate; D007694:Killer Cells, Natural / Q000276:immunology; D008262:Macrophage Activation; D009504:Neutrophils / Q000201:enzymology / Q000276:immunology
chemical_list: D016207:Cytokines; D003165:Complement System Proteins