title: [Smallpox immunity in repeatedly vaccinated persons].
mesh_terms: D006801:Humans; D007115:Immunization Schedule; D012899:Smallpox / Q000276:immunology*; D012900:Smallpox Vaccine / Q000008:administration & dosage*
chemical_list: D012900:Smallpox Vaccine
vernacular_title: Pockenimmunität bei Mehrfachvakzinierten