title: [Has the vaccine failed?].
authors: H S
authors: HS
authors: Füessl
authors: P
authors: P
authors: Stiefelhagen
mesh_terms: D000914:Antibodies, Viral / Q000276:immunology; D002648:Child; D004196:Disease Outbreaks / Q000517:prevention & control; D005858:Germany; D006801:Humans; D007117:Immunization, Secondary; D007121:Immunocompetence / Q000276:immunology; D008457:Measles / Q000175:diagnosis* / Q000276:immunology* / Q000517:prevention & control; D008458:Measles Vaccine / Q000008:administration & dosage* / Q000276:immunology*
chemical_list: D000914:Antibodies, Viral; D008458:Measles Vaccine