title: Letter from the editor.
authors.forename: Ronald
authors.initials: R
authors.lastname: Ellis
authors.forename: Adam C
authors.initials: AC
authors.lastname: Weiss
mesh_terms: D000818:Animals; D001428:Bacterial Vaccines / Q000276:immunology; D006801:Humans; D007167:Immunotherapy; D053918:Papillomavirus Vaccines / Q000276:immunology; D014612:Vaccines / Q000276:immunology*; D014765:Viral Vaccines / Q000276:immunology
chemical_list: D001428:Bacterial Vaccines; D053918:Papillomavirus Vaccines; D014612:Vaccines; D014765:Viral Vaccines