title: WHO calls for vaccine boost to prepare for flu pandemic.
authors.forename: Erika
authors.initials: E
authors.lastname: Check
mesh_terms: D000818:Animals; D001717:Birds / Q000821:virology; D002986:Clinical Trials as Topic / Q000639:trends; D006801:Humans; D007252:Influenza Vaccines / Q000276:immunology / Q000600:supply & distribution*; D007251:Influenza, Human / Q000453:epidemiology* / Q000517:prevention & control* / Q000635:transmission; D038622:Internationality; D014944:World Health Organization
chemical_list: D007252:Influenza Vaccines