title: New scientific opportunities and old obstacles in vaccine development.
abstract: The present status of and priorities for vaccine development are described, and the historical conditions under which vaccines have been developed are contrasted with newer technologies for such development. Current programs, the opportunities they present, and the obstacles to their implementation are summarized.
mesh_terms: D001709:Biotechnology; D005544:Forecasting; D006076:Government; D049673:History, 20th Century; D006801:Humans; D007221:Industry; D012109:Research Support as Topic; D014612:Vaccines / Q000266:history*
chemical_list: D014612:Vaccines