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Andrew Pelletier, MD, MPH Maine Department of Health and Human Services June 26, 2006

Pandemic Influenza. Andrew Pelletier, MD, MPH Maine Department of Health and Human Services June 26, 2006. Oh my goodness! The sky is falling! I must go and tell the king. Chicken Little. Influenza. Seasonal influenza Avian influenza H5N1 Pandemic influenza.

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Andrew Pelletier, MD, MPH Maine Department of Health and Human Services June 26, 2006

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  1. Pandemic Influenza Andrew Pelletier, MD, MPH Maine Department of Health and Human Services June 26, 2006

  2. Oh my goodness! The sky is falling! I must go and tell the king. Chicken Little

  3. Influenza • Seasonal influenza • Avian influenza • H5N1 • Pandemic influenza

  4. Characteristics of Pandemics • Novel virus • Severe illness in humans • Efficiently transmitted

  5. Recent Pandemics • 1918 • 500,000 deaths in U.S. • 1957 • 70,000 deaths in U.S. • 1968 • 34,000 deaths in U.S.

  6. Pandemic Assumptions • Attack rate of 25%-35% • Duration of a year or more in 2 waves • Each wave lasting 6-8 weeks in community • Healthcare system will be severely taxed if not overwhelmed

  7. Pandemic Influenza Projections for Maine

  8. Social Disruption from Pandemic Influenza • Absenteeism in essential sectors • Economic impact • Psychological stress

  9. H5N1 • In Asia since 1997 • Initially in poultry • Avian disease now in 50 countries • Asia, Europe and Africa • Current focus of pandemic preparedness

  10. Influenza Control • Vaccination • Antiviral drugs • Infection control/community containment

  11. Assumptions for Vaccination • Two doses will be required • Vaccine will not be available for 3-6 months after start of pandemic • Production will be ~4 million doses per week

  12. Assumptions for Antivirals • Tamiflu and Relenza will be effective in decreasing morbidity and mortality • Expected domestic production for Tamiflu is 1.25 million courses/month • Goal is stockpile of 80 million courses • Current stockpile is 26 million courses

  13. Challenges to Containment • Short incubation period • Ability of persons with asymptomatic infection to transmit virus • Early symptoms of illness are likely to be non-specific, delaying recognition

  14. Summary • Unknown when pandemic will occur or how severe it will be • Progression of H5N1 is worrisome • Current ability to respond to a pandemic is limited • Taking basic steps to prepare is important

  15. Checklist for Schools http://www.pandemicflu.gov/plan/pdf/schoolchecklist.pdf

  16. andrew.pelletier@maine.govphone 287-4326

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