title: Vaccines in the 21st century.
authors.affiliation: Department of Pediatrics, University of Pennsylvania, Philadelphia, USA. Stanley.plotkin@aventis.com
authors.forename: Stanley A
authors.initials: SA
authors.lastname: Plotkin
mesh_terms: D000818:Animals; D005544:Forecasting; D006801:Humans; D014611:Vaccination / Q000639:trends*; D014612:Vaccines / Q000627:therapeutic use*
chemical_list: D014612:Vaccines