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What is The Flu?

What is The Flu?

Influenza, commonly referred to as “the flu”, is a serious respiratory disease that is caused by a virus.
To learn more about seasonal flu click here.

Who can get the flu?

  • Anyone can get the flu

Although most people who get it are sick for a short time, some people can get much sicker and need to go the emergency room or visit their doctor.

What are the symptoms?

  • cough
  • fever
  • chills
  • sore throat
  • headache
  • muscle aches
  • extreme weakness
  • fatigue

Illness caused by the flu usually lasts 2 to 7 days; sometimes longer in the elderly and in people with chronic diseases. Sometimes cough and fatigue can last for several weeks, making a full return to work and personal activities difficult. 

Flu self assessment tool:  http://www.health.gov.on.ca/en/public/programs/publichealth/flu/tools/assessment/default.aspx

How is the flu spread?

  • From person to person
  • By cough or sneeze through respiratory droplets in the air
  • Virus can live on surfaces such as door handles, taps, counter tops, water bottles, toys, eating utensils

In general, people who get the flu can spread it to others for 1-3 days before symptoms start and up to 7 days after they begin to have symptoms. Young children can spread the flu for up to 6 days before the symptoms start and up to 21 days after their symptoms begin.

Are there complications of the flu?

The flu can also lead:

  • Pneumonia
  • Hospitalization
  • Death
  • The elderly and those with chronic medical conditions, such as heart or lung problems are at greater risk for complications
Page Last Updated: Monday, October 03 2011