title: The complement system: its importance in the host response to viral infection.
mesh_terms: D000818:Animals; D000914:Antibodies, Viral / Q000276:immunology; D001790:Blood Physiological Phenomena; D002460:Cell Line; D003167:Complement Activation; D003170:Complement Pathway, Alternative; D003171:Complement Pathway, Classical; D003165:Complement System Proteins / Q000378:metabolism*; D006801:Humans; D007074:Immunoglobulin G / Q000276:immunology; D009500:Neutralization Tests; D011414:Properdin / Q000502:physiology; D014777:Virus Diseases / Q000276:immunology*; D014780:Viruses / Q000254:growth & development / Q000276:immunology*
chemical_list: D000914:Antibodies, Viral; D007074:Immunoglobulin G; D011414:Properdin; D003165:Complement System Proteins