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. Updates around immunization coverage in COVID-19 and seasonal influenza are also included.
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 10:00am every Friday.
Due to an influx of influenza laboratory reports this respiratory season, Manitoba Health is experiencing delays in the documentation of laboratory results within the provincial Public Health Information Management System (PHIMS). As s result, the influenza case counts for week 48 are lower than expected. We anticipate an update to these data in next week's report.
Data extracted up to 1:00 am on December 8, 2022
Next reporting date: December 16, 2022
COVID-19 vaccination / Seasonal Influenza vaccination
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Important Notes
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Figure 1. Weekly Cases of COVID-19 by Season, Manitoba, 2020 – 2022 (July through June)
Figure 2. Sex and Age Distribution of COVID-19 Cases, Manitoba, July 3, 2022 – December 3, 2022
Figure 3. Incidence Rate (/10,000 Population) of COVID-19 Cases by Age Group and Week of Public Health Report Date, Manitoba, July 3, 2022 – December 3, 2022
Figure 4. Cases of COVID-19 by Health Region and Public Health Report Date, Manitoba, August 1, 2022 – December 3, 2022
Table 1. Cases of COVID-19 and Incidence Rate (/10,000 population) by Health Region, Manitoba, July 3, 2022 – December 3, 2022
Helath region | Total cases | Cases this week | Incidence rate this week | Age-standardized incidence rate* this week |
---|---|---|---|---|
Winnipeg RHA | 3845 | 135 | 1.7 | 1.7 |
Southern Health-Santé Sud | 621 | 48 | 2.2 | 2.5 |
Interlake-Eastern RHA | 694 | 22 | 1.6 | 1.5 |
Prairie Mountain Health | 871 | 30 | 1.7 | 1.5 |
Northern Health Region | 447 | 16 | 2.1 | 2.9 |
Note: * Age-standardized rates are used to account for differences in the age structure in health regions. The whole Manitoba population is used as the standard population.
Figure 5. Average Daily Testing Volume and Positivity (%) for COVID-19 by Week of Specimen Receiving Date, Manitoba, July 3, 2022 – December 3, 2022
Figure 6. Severe Outcomes of COVID-19 by Week of Outcome Date, Manitoba, July 3, 2022 – December 3, 2022
Note. ICU admissions are not included in the hospital admissions.
Figure 7. Age Distribution of Severe COVID-19 Cases This Week Compared to All Cases, Manitoba, July 3, 2022 – December 3, 2022
Figure 8. Weekly COVID-19 Outbreaks, Manitoba, 2020 – 2022
Note: All respiratory outbreaks include COVID-19 outbreaks, influenza outbreaks and the other respiratory outbreaks with known or unknown pathogens.
Table 2. Coverage of COVID-19 Vaccinations, Manitoba, December 3, 2022
Age group (years) | At least 1 dose | At least 2 doses | At least 1 dose within the last 6 months | At least 1 dose of Bivalent |
---|---|---|---|---|
.5-04 | 9.0% | 3.3% | 8.9% | 0.0% |
05-11 | 55.9% | 42.7% | 9.1% | 0.1% |
12-17 | 82.8% | 78.2% | 8.9% | 4.5% |
18-29 | 88.5% | 85.4% | 7.0% | 5.7% |
30-39 | 84.5% | 82.0% | 11.5% | 10.1% |
40-49 | 87.8% | 86.0% | 15.6% | 13.8% |
50-59 | 87.1% | 85.8% | 23.6% | 17.1% |
60-69 | 94.7% | 93.5% | 40.8% | 30.6% |
70-79 | >=95.0% | >=95.0% | 53.5% | 42.1% |
80+ | >=95.0% | >=95.0% | 53.4% | 44.0% |
ALL | 81.3% | 78.0% | 20.3% | 14.9% |
For more information, please visit COVID-19 vaccination coverage in Canada - Canada.ca
Figure 9. Weekly Cases of Influenza by Season, Manitoba, 2019 – 2022 (July through June)
Figure 10. Incidence Rate (/10,000 Population) of Influenza Cases by Age Group and Week of Public Health Report Date, 2018 – December 3, 2022
Table 3. Cases of Influenza and Incidence Rate (/10,000 population) by Health Region, Manitoba, July 3, 2022 – December 3, 2022
Helath region | Total cases | Cases this week | Incidence rate this week | Age-standardized incidence rate* this week |
---|---|---|---|---|
Winnipeg RHA | 511 | 58 | 0.7 | 0.7 |
Southern Health-Santé Sud | 127 | 17 | 0.8 | 0.8 |
Interlake-Eastern RHA | 153 | 25 | 1.8 | 2.1 |
Prairie Mountain Health | 154 | 14 | 0.8 | 0.8 |
Northern Health Region | 36 | <5 | 0.5 | 0.6 |
Note: * Age-standardized rates are used to account for differences in the age structure in health regions. The whole Manitoba population is used as the standard population.
BackFigure 11. Average Daily Testing Volume and Positivity (%) for Influenza by Week of Specimen Receiving Date, Manitoba, July 3, 2022 – December 3, 2022
Figure 12. Number of Positive Respiratory Virus Tests by Week of Specimen Receiving Date, Manitoba, July 3, 2022 – December 3, 2022
Note. Other respiratory viruses include adenovirus, enterovirus/rhinovirus, human coronavirus (seasonal), human metapneumovirus and human parainfluenza virus.
BackFigure 13. Severe Outcomes of Influenza by Week of Outcome Date, Manitoba, July 3, 2022 – December 3, 2022
Note. ICU admissions are not included in the hospital admissions.
BackFigure 14. Age Distribution of Severe Influenza Cases in All Cases, Manitoba, July 3, 2022 – December 3, 2022
Figure 15. Weekly Respiratory and Influenza Outbreaks, Manitoba, 2019 – December 3, 2022
Note: All respiratory outbreaks include COVID-19 outbreaks, influenza outbreaks and the other respiratory outbreaks with known or unknown pathogens.
Table 5. Coverage of Influenza Vaccinations, Manitoba, September 1, 2022 – December 3, 2022
Age group | Does | Coverage percentage |
---|---|---|
0-4 | 10385 | 12.2% |
5-17 | 26339 | 11.6% |
18-49 | 73941 | 12.5% |
50-64 | 68324 | 26.4% |
65+ | 129687 | 55.4% |
All | 310750 | 22.2% |
Figure 16. Weekly FluWatchers Participants and Percentage Reporting Fever and Cough, Manitoba, 2019 – December 3, 2022
Figure 17. Weekly Percentage of ILI Related Visits to Sentinel Physicians, Manitoba, 2018 – December 3, 2022
Figure 18. Weekly Units of Antiviral Dispensed from Pharmacies, Manitoba, 2018 – December 3, 2022
Figure 19. Weekly Respiratory Visits to Emergency Department, Manitoba, 2017 – December 3, 2022