Flu (influenza): Monitoring through FluWatch

FluWatch is Canada's national system to monitor the spread of flu and flu-like illnesses.

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FluWatch reports

FluWatch reports provide information on flu activity. They're generally published weekly on Fridays during active flu season and monthly during the summer.

Annual FluWatch reports summarize information on flu activity in Canada for the previous year's flu season.

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Weekly respiratory virus detections report

The Respiratory Virus Detection Surveillance System monitors laboratory testing for:

  • flu
  • COVID-19
  • respiratory syncytial virus (RSV)
  • other respiratory viruses

Laboratories across Canada report the number of tests performed and the number of positive tests each week. Reports are generally posted on Thursdays.

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Become a FluWatcher

Some FluWatch data come from volunteers across Canada who report weekly on symptoms such as cough and fever. They're known as FluWatchers. This information helps public health officials identify where flu, COVID-19 and other respiratory viruses are circulating.

You can become a FluWatcher. The main weekly questionnaire has 2 questions about symptoms and takes about 15 seconds to complete. Your answers are anonymous.

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Flu maps

The FluWatchers map shows where flu-like illness is being reported by participants in the FluWatchers program.

The flu activity maps show the weekly flu levels reported by each region.

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Related links

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