From the Centers for Disease Control and Prevention. Update: influenza activity--United States and worldwide, 1996-97 season, and composition of the 1997-98 influenza vaccine.
D014943:Global Health; 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*; D012621:Seasons; D014481:United States
D007252:Influenza Vaccines