title: Antigenically different subtype in new flu vaccine.
authors.forename: C
authors.initials: C
authors.lastname: Marwick
mesh_terms: D002487:Centers for Disease Control and Prevention, U.S.; D014943:Global Health; D006801:Humans; D009980:Influenza A virus / Q000145:classification; D009981:Influenza B virus / Q000145:classification; D007252:Influenza Vaccines; D007251:Influenza, Human / Q000517:prevention & control*; D014481:United States; D014486:United States Food and Drug Administration
chemical_list: D007252:Influenza Vaccines