U.S. unprepared for flu outbreak, experts warn.
D004189:Disaster Planning / Q000331:legislation & jurisprudence*; D004196:Disease Outbreaks / Q000517:prevention & control*; D006801:Humans; D007252:Influenza Vaccines / Q000600:supply & distribution; D007251:Influenza, Human / Q000453:epidemiology* / Q000517:prevention & control; D011634:Public Health; D014481:United States; D014944:World Health Organization
D007252:Influenza Vaccines