title: The application of clonal selection to medical practice.
mesh_terms: D000917:Antibody Formation; D000937:Antigen-Antibody Reactions; D002999:Clone Cells; D006801:Humans; D007109:Immunity; D007111:Immunity, Cellular; D014611:Vaccination; D014765:Viral Vaccines
chemical_list: D014765:Viral Vaccines