title: Letter from the editor.
authors.forename: Ronald W
authors.initials: RW
authors.lastname: Ellis
authors.forename: Eva Maria
authors.initials: EM
authors.lastname: Riedmann
mesh_terms: D005858:Germany; D006801:Humans; D007167:Immunotherapy / Q000379:methods*; D014612:Vaccines / Q000008:administration & dosage* / Q000009:adverse effects / Q000276:immunology*
chemical_list: D014612:Vaccines