Estimated Impact of Influenza Pandemics

1918-19 Spanish Flu (H1N1)
• 20-50 million deaths worldwide
• >500,000 U.S. deaths

1957-58 Asian Flu (H2N2)
• 70,000 U.S. deaths


1968-69 Hong Kong Flu (H3N2)
• 34,000 U.S. deaths

Estimated Impact of a Future Avian Influenza Pandemic in the U.S.

  • Deaths: 89,000 – 207,000
  • Hospitalizations: 314,000 – 734,000
  • Outpatient visits: 18 – 42 million
  • Additional illnesses: 20 – 47 million
  • Economic impact: $71.3 – 166.5 billion
  • Population affected: 15-35% (U.S. population: 290 million)

Meltzer M, et al. Emerging Infectious Diseases 1999;5:659-671


See also, The Flu is a Bummer.

The Centers for Disease Control and Prevention (CDC) is one of the 13 major operating components of the Department of Health and Human Services (HHS), which is the principal agency in the United States government for protecting the health and safety of all Americans and for providing essential human services, especially for those people who are least able to help themselves.

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