title: From the Centers for Disease Control and Prevention. Update: influenza activity--United States and worldwide, 1997-98 season, and composition of the 1998-99 influenza vaccine.
mesh_terms: D004196:Disease Outbreaks; D014943:Global Health; D006801:Humans; D009980:Influenza A virus; D009981:Influenza B virus; D007252:Influenza Vaccines; D007251:Influenza, Human / Q000453:epidemiology* / Q000517:prevention & control*; D014481:United States / Q000453:epidemiology
chemical_list: D007252:Influenza Vaccines