Pandemic Influenza

Pandemic influenza is a global outbreak of disease that occurs when three conditions are met:

  1. A new influenza A virus emerges and infects people.
  2. The virus causes severe illness in people.
  3. The virus spread easily from person to person.

History shows that influenza pandemics usually spread quickly around the world, resulting in an unusually high number of illnesses and deaths for two to three years. Such pandemics occurred in 1918, 1957 and 1968.

Vermont public health officials are actively working with other government agencies, communities, hospitals, health care providers and first responders to be prepared to address the complex issues and serious impact on our state should a new influenza pandemic occur.

How Are Pandemic, Avian and Seasonal Influenza Different?

Pandemic Flu
Currently there is no pandemic influenza. A flu pandemic is a global outbreak that occurs when a new influenza A virus causes serious human illness and spreads easily from person to person.

Avian Flu
Bird flu is caused by avian influenza viruses, which occur naturally among birds.

Seasonal Flu
The flu is a contagious respiratory illness that spreads easily from person to person and is caused by influenza viruses.

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What You Should Know

Pandemic Planning

Interim Pre-Pandemic Planning Guidance: Community Strategy for Pandemic Influenza Mitigation in the United States (pdf) (5.1 MB, 108 pgs)

This 108-page guide by the Centers for Disease Control and Prevention gives detailed strategies for using non-pharmaceutical, or community containment, measures – such as staying home when you're sick, closing schools, social distancing in the workplace, etc. – that are tied to the severity of a pandemic. This guidance will be used as Vermont government agencies and communities continue their planning for the possibility of pandemic.

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