Weekly influenza reports

FluWatch summary

May 26, 2024 to June 22, 2024 (weeks 22-25)

At the national level, indicators of influenza activity are decreasing and remain at interseasonal levels.

Virologic

  • In week 25, the percentage of tests positive for influenza was 1.0% and a total of 160 laboratory detections (114 influenza A and 46 influenza B) were reported.

Syndromic

  • The percentage of FluWatchers reporting cough and fever was 1.0% in week 25. The percentage of FluWatchers reporting cough and fever remains below expected levels for this time of year.

Outbreaks

  • From August 27, 2023 to June 22, 2024 (weeks 35 to 25), 1,217 laboratory-confirmed influenza outbreaks have been reported (1 laboratory-confirmed influenza outbreak was reported in week 25).

Severe Outcomes

  • From August 27, 2023 to June 22, 2024 (weeks 35 to 25), 4,479 influenza-associated hospitalizations were reported by participating provinces and territories. Adults aged 65 years of age and older accounted for 45% of reported hospitalizations. The highest cumulative hospitalization rates were among adults 65 years of age and older (136/100,000) and children under 5 years of age (99/100,000).
  • From October 1, 2023 to May 11, 2024 (weeks 40 to 19), 1,111 influenza-associated pediatric hospitalizations were reported from a total of 4,641 positive influenza tests across ten sentinel hospital sites.

Other Notes

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