6 Facts about Flu and Flu Symptoms

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What Is Flu?

Flu is a respiratory infection caused by a number of viruses. Flu viruses pass through the air and enter your body through your nose or mouth. Flu can be serious or even deadly for elderly people, newborn babies and people with certain chronic illnesses.

Artwork of man holding his nose because of flu.Symptoms of Flu

Symptoms of flu may include:

  • Headache
  • Cough
  • Sore throat
  • Fever
  • Body or muscle aches
  • Chills

6 Facts about Flu

Some facts about flu:

  • Also known as influenza and grippe.
  • Influenza epidemics occur yearly during autumn and winter in temperate regions.
  • Most flu deaths in industrialized countries occur among people aged over 65.
  • Globally, flu causes three to five million cases of severe illness and about 250,000 to 500,000 deaths a year.
  • The virus mainly spreads through droplets made when flu sufferers cough, sneeze or talk.
  • You can also get flu by touching a surface with the virus on it and then touching your mouth, eyes or nose.

Source: World Heath Organisation, US Centre for Disease Control, National Institute of Health

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