title: Letter from the Editor.
mesh_terms: D018562:Disease Transmission, Infectious / Q000517:prevention & control*; D006801:Humans; D007167:Immunotherapy / Q000379:methods*; D010506:Periodicals as Topic; D014612:Vaccines / Q000008:administration & dosage / Q000276:immunology* / Q000302:isolation & purification*
chemical_list: D014612:Vaccines