title: [Pandemic influenza still a threat--where do we get the vaccine from?].
authors.affiliation: Kansanterveyslaitos Mannerheimintie 166 00300 Helsinki. reijo.pyhala@ktl.fi
authors.forename: Reijo
authors.initials: R
authors.lastname: Pyhälä
mesh_terms: D000818:Animals; D021821:Communicable Diseases, Emerging / Q000453:epidemiology / Q000821:virology*; D004196:Disease Outbreaks / Q000266:history / Q000517:prevention & control*; D004197:Disease Reservoirs; D014943:Global Health; D049673:History, 20th Century; D006801:Humans; D007252:Influenza Vaccines / Q000266:history / Q000600:supply & distribution*; D007251:Influenza, Human / Q000453:epidemiology / Q000266:history / Q000517:prevention & control*
chemical_list: D007252:Influenza Vaccines