title: FDA panel debates adding a fourth strain to influenza vaccine.
authors.forename: Greg
authors.initials: G
authors.lastname: Lavine
mesh_terms: D017277:Drug Approval; D006801:Humans; D009980:Influenza A virus / Q000276:immunology*; D009981:Influenza B virus / Q000276:immunology*; D007252:Influenza Vaccines / Q000276:immunology*; D007251:Influenza, Human / Q000453:epidemiology* / Q000517:prevention & control*; D014481:United States; D014486:United States Food and Drug Administration; D017778:Vaccines, Combined / Q000276:immunology
chemical_list: D007252:Influenza Vaccines; D017778:Vaccines, Combined