title: Letter from the editor.
authors.forename: Ronald
authors.initials: R
authors.lastname: Ellis
authors.forename: Adam
authors.initials: A
authors.lastname: Weiss
mesh_terms: D003141:Communicable Diseases / Q000453:epidemiology*; D006801:Humans; D007167:Immunotherapy / Q000379:methods*; D014612:Vaccines / Q000276:immunology* / Q000302:isolation & purification*
chemical_list: D014612:Vaccines