Provincial Respiratory Surveillance Report

COVID-19 and Seasonal Influenza

2024-2025 season

*seasons are defined as June 30, 2024 to June 28, 2025

This weekly report provides a current epidemiological update on the intensity and severity of respiratory activity in Manitoba including laboratory confirmed activity of both COVID-19 and seasonal influenza. Surveillance data include syndromic indicators, laboratory testing, associated hospitalization and mortality, and outbreaks.

Data are reported with a one-week delay for increased data accuracy, completeness and reliability. More analyses continue to be conducted and will be added to this report as available. It is published online at approximately 3:00pm every Friday.

Week 42 (October 13 – October 19, 2024)

About epidemiological week

Data extracted up to 1:00 am on October 24, 2024
Next reporting date: November 1, 2024

COVID-19 Test positivity remains lower than the peak rate observed in the fall (week 45). There are indications of an increase; all other indicators remained stable over time. Wastewater surveillance data up to October 22nd indicates moderate activity for COVID-19.		Cases About cases Cases this week: 127 Total cases: 1,668 (June 30, 2024 – October 19, 2024) More Analyses Epi curve Age and sex
Testing About testing This week Average daily specimens: 159 Weekly positivity rate: 21.2% Total (June 30, 2024 – October 19, 2024) Tested people: 11,296 Population tested: 0.8% Specimens tested: 14,688 Positivity rate: 19.3% More Analyses Provincial testing	Severity About associated severity Severe outcomes this week Hospital admissions: 48 ICU admissions3: 6 Deaths7: 7 Total severe outcomes (June 30, 2024 – October 19, 2024) Hospital admissions: 745 ICU admissions: 81 Deaths: Unavailable	Outbreaks About outbreaks COVID-19 outbreaks this week In long-term care facilities: 4 In hospitals: 2 In other settings: 1 Total COVID-19 outbreaks (June 30, 2024 – October 19, 2024) In long-term care facilities: 97 In hospitals: 45 In other settings: 5 More Analyses Check trend
Seasonal Influenza Test positivity remains lower than the peak rate observed in the fall (week 51); all other indicators remained stable over time. RSV detection in week 42 was low and remained consistent with levels observed in previous weeks.		Cases Cases this week Influenza A: 7 Influenza B: 0 Total cases (June 30, 2024 – October 19, 2024) Influenza A: 29 Influenza B: 1 More Analyses Check trend
Testing Influenza testing this week Average daily specimens: 32 Influenza A positivity rate: 3.5% Influenza B positivity rate: 0.0% Other respiratory pathogens this week RSV4 positivity rate: 0.0% RSV detections: 0 More Analyses Influenza testing Respiratory detection	Severity Severe outcomes this week Hospital admissions: Unavailable ICU admissions: Unavailable Deaths7: 1 Total severe outcomes (June 30, 2024 – October 19, 2024) Hospital admissions: Unavailable ICU admissions: Unavailable Deaths: 1	Outbreaks About outbreaks Influenza outbreaks this week Influenza A: 1 Influenza B: 0 Total influenza outbreaks (June 30, 2024 – October 19, 2024) Influenza A: 1 Influenza B: 0 Other outbreaks This week: 7 Total (June 30, 2024 – October 19, 2024): 46 More Analyses Check trend
Syndromic Indicators Weekly respiratory visits to emergency departments are currently lower than the peak observed in week 51. However, there are signs of an increase in recent weeks. All other syndromic indicators have remained stable over time.		FluWatchers About FluWatchers Participants reporting this week: 456 Reporting fever and cough: 1.3% More Analyses Check trend
Physician Visits About sentinel physicians Influenza Like Illness (ILI) Visits to sentinel physicians this week: 2.6% More Analyses Check Trend	Antiviral About Antiviral Units of antiviral dispensed from pharmacies this week: 3 More Analyses Check Trend	ED Visits About emergency room visits Respiratory visits to emergency department (ED) this week: 1448 More Analyses Check Trend
Important Notes Data about COVID-19 and influenza cases are extracted from PHIMS. Numbers are subject to change. Missed events in the current report due to reporting delays will be included in later reports when data become available. Cumulative totals include all events from start of the current season to end of the reporting week. ICU admissions are included in hospital admissions, and include adult and pediatric cases. RSV - Respiratory syncytial virus. Influenza associated hospitalizations and associated ICU cases are currently under review. COVID case counts are under review and maybe an undercount. Deaths are reported as “associated with” COVID or Influenza, but not all have been “caused by” COVID or Influenza. “COVID associated deaths” and “Influenza associated deaths” include persons who had a confirmed positive lab test result for COVID or Influenza, within 30 days before their death, or following their death through a post mortem. The number of deaths from week to week may be impacted by the lag-time for entry of deaths from Vital Statistics/Client Registry/clinical notifications and delayed entry of cases.

COVID-19

Cases

Figure 1. Weekly Cases of COVID-19 by Season, Manitoba, 2021 – 2025 (June through June)

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Figure 2. Sex and Age Distribution of COVID-19 Cases, Manitoba, June 30, 2024 – October 19, 2024

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Figure 3. Cases of COVID-19 by Health Region and Public Health Report Date, Manitoba, June 30, 2024 – October 19, 2024

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Testing

Figure 4. Average Daily Testing Volume and Positivity (%) for COVID-19 by Week of Specimen Receiving Date, Manitoba, June 30, 2024 – October 19, 2024

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Seasonal Influenza

Cases

Figure 5. Weekly Cases of Influenza by Season, Manitoba, 2020 – 2025 (June through June)

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Testing

Figure 6. Average Daily Testing Volume and Positivity (%) for Influenza by Week of Specimen Receiving Date, Manitoba, June 30, 2024 – October 19, 2024

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Figure 7. Number of Positive Respiratory Virus Tests by Week of Specimen Receiving Date, Manitoba, June 30, 2024 – October 19, 2024

Note. Other respiratory viruses include adenovirus, enterovirus/rhinovirus, human coronavirus (seasonal), human metapneumovirus and human parainfluenza virus.

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Outbreaks

Figure 8. Weekly Respiratory Outbreaks, Manitoba, 2021 – October 19, 2024

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FluWatchers

Figure 9. Weekly FluWatchers Participants and Percentage Reporting Fever and Cough, Manitoba, 2020 – October 19, 2024

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Physician Visits

Figure 10. Weekly Percentage of ILI Related Visits to Sentinel Physicians, Manitoba, 2018 – October 19, 2024

Note. Due to small numbers the rates should be interpreted with caution.

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Antiviral

Figure 11. Weekly Units of Antiviral Dispensed from Pharmacies, Manitoba, 2020 – October 19, 2024

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ED Visits

Figure 12. Weekly Respiratory Visits to Emergency Department, Manitoba, 2017 – October 19, 2024

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