Weekly influenza reports

FluWatch summary

October 10, 2021, to October 16, 2021 (week 41)

  • In week 41, influenza activity across Canada was exceptionally low with almost all regions reporting no influenza activity. In the past week, all influenza indicators were at exceptionally low interseasonal levels.

Virologic

  • In week 41, a total of six influenza detections (3 influenza A and 3 influenza B) have been reported.
  • Among the six detections with detailed age information, all were reported in individuals under the age of 65 years.

Syndromic

  • The percentage visits for influenza-like illness (ILI) was 1.1% in week 41 and is within expected levels.
  • The percentage of FluWatchers reporting fever and cough was 0.5% in week 41; it remains below expected levels and is stable.

Outbreaks

  • In week 41, no outbreaks were reported.
  • From August 29 to October 16, 2021 (weeks 35 to 41), 11 ILI outbreaks and no laboratory-confirmed influenza outbreaks have been reported.

Severe Outcomes

  • From August 29 to October 16, 2021 (weeks 35 to 41), no influenza-associated hospitalizations have been reported.

Other Notes

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