Weekly influenza reports

FluWatch Summary

March 22 to 28, 2020 (week 13)

  • The percentage of tests positive for influenza fell below 5% this week. This suggests that Canada is nearing the end of the 2019-2020 influenza season at the national level.
  • All indicators of influenza activity decreased compared to the previous week.
  • Laboratory detections and syndromic indicators may be influenced by the COVID-19 pandemic. These data should be interpreted with caution.
  • The 2019-2020 Seasonal Influenza Immunization Coverage Survey showed that coverage was low among adults aged 18-64 years (34%) and highest among seniors aged 65 years and older (70%).
  • The highest cumulative hospitalization rates are among children under 5 years of age and adults 65 years of age and older. Hospitalizations among adults are predominantly due to influenza A, while those among children are due to a mix of influenza A and B.
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