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How does an influenza pandemic occur?

ANSWER

An influenza pandemic occurs when:

  • A new subtype of virus arises. This means humans have little or no immunity to it. Everyone is at risk.
  • The virus spreads easily from person to person, such as through sneezing or coughing.
  • The virus begins to cause serious illness worldwide. With past flu pandemics, the virus reached all parts of the globe within six to nine months. With the speed of air travel today, public health experts believe an influenza pandemic could spread much more quickly. A pandemic can occur in waves. And all parts of the world may not be affected at the same time.

SOURCES:

World Health Organization: “Disease Outbreaks.”

World Health Organization: “Ten things you need to know about pandemic influenza.”

PandemicFlu.gov: “Planning & Response - Swine Flu.”

PandemicFlu.gov: “Community Strategy for Pandemic Influenza Mitigation.”

PandemicFlu.gov: “Individuals and Families Planning.”

Reviewed by Jennifer Robinson on April 2, 2020

SOURCES:

World Health Organization: “Disease Outbreaks.”

World Health Organization: “Ten things you need to know about pandemic influenza.”

PandemicFlu.gov: “Planning & Response - Swine Flu.”

PandemicFlu.gov: “Community Strategy for Pandemic Influenza Mitigation.”

PandemicFlu.gov: “Individuals and Families Planning.”

Reviewed by Jennifer Robinson on April 2, 2020

From: Pandemics

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What are the phases of pandemics and what do they mean?

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