title: Immunisation--125 years of progress.
authors.affiliation: Ayrshire and Arran Health Board.
authors.forename: D
authors.initials: D
authors.lastname: Walker
mesh_terms: D005544:Forecasting; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D007114:Immunization / Q000266:history* / Q000706:statistics & numerical data / Q000639:trends