Provincial Respiratory Surveillance Report

COVID-19


This report provides a current epidemiological update on the intensity and severity of COVID-19 in Manitoba. Surveillance and administrative data include laboratory, hospitalization and mortality data. Data are presented at the provincial and regional level. In this weekly report, we provide regular updates about the current activity of COVID-19 in Manitoba with a focus on severe outcomes (hospital admissions, intensive care unit admissions (ICU), and deaths).

Data are reported with a one-week delay for increased data accuracy, completeness and reliability. Updates or changes to this report occur regularly. It is published online at approximately 10:00am every Thursday.

Week 17 (April 24 – April 30)

About epidemiological week

Data extracted up to 1:00 am on May 3, 2022
Next reporting date: May 12, 2022

COVID-19:: Decreased Activity

In Week 17, there were 1,042 laboratory-confirmed COVID-19 cases reported in Manitoba, a decrease from 1,436 in the previous week. The volume of lab tests decreased to on average 840 people tested for COVID-19 per day compared to 955 in the previous week, and the positivity rate of lab tests was 20.7%, a decrease from 23.4% in the previous week.

Severe outcomes resulting from COVID-19 infection decreased compared to the previous week. There were 199 total severe outcomes, with 185 hospital admissions and 14 deaths. Of the 185 hospital admissions, 12 were ICU admissions.

In all Manitoba residents, 82.8% of residents have been partially vaccinated and 79.6% have been fully vaccinated. By March 31st, 42.1% have received one additional dose.

Wastewater surveillance data for the city of Winnipeg by April 21 indicated ongoing activity of COVID-19, with a generalized stabilization in activity.

Cases

About cases

  • Cases this week: 1,042
  • Total cases: 141,973
More Analyses

Testing

About testing

This week:

  • Average daily specimens: 840
  • Weekly positivity rate: 20.7%

Total:

  • Tested people: 725,814
  • Population tested: 53.2%
  • Specimens tested: 1,485,501
  • Positivity rate: 9.9%
More Analyses

Severity

About severity associated with COVID-19

Severe outcomes this week: 199

  • Hospital admissions: 173
    • ICU admissions3: 12
  • Deaths4: 14

Total severe outcomes: 11,723

  • Hospital admissions: 9,904
    • ICU admissions: 1,476
  • Deaths: 1,819
More Analyses

Outbreaks

About outbreaks

COVID-19 outbreaks this week: 16

  • Outbreaks in long-term care facilities: 11
  • Outbreaks in schools: 0

Total COVID-19 outbreaks: 600

  • Total outbreaks in long-term care facilities: 343
  • Total outbreaks in schools: 33
More Analyses

Important Notes

  1. Data about COVID-19 cases and contacts are extracted from PHIMS.
  2. 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.
  3. ICU admissions were included in hospital admissions, and include adult and pediatric cases.
  4. As of March 15, 2022, the definition of a COVID-19-associated death has been changed.

Cases

Figure 1. Cases of COVID-19 by Week of Public Health Report Date, Manitoba, August 23, 2020 – April 30, 2022

Weekly cases and deaths (.csv)

Note. Deaths due to COVID-19 were aligned by week of outcome date.

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Figure 2. Sex and Age Distribution of COVID-19 Cases, Manitoba, March 1, 2020 – April 30, 2022

Sex and age counts (.csv)

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Figure 3. Incidence Rate (/10,000 Population) of COVID-19 Cases by Age Group and Week of Public Health Report Date, Manitoba, August 23, 2020 – April 30, 2022

Weekly incidence rate by age (.csv)

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Figure 4. Cases of COVID-19 by Health Region and Public Health Report Date, Manitoba, May 1, 2021 – April 30, 2022

Weekly cases by region (.csv)

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Table 1. Cases of COVID-19 and Incidence Rate (/10,000 population) by Health Region, Manitoba, March 13, 2020 – April 30, 2022

Health Region Total Cases Cases this week Incidence Rate Age-standardized Incidence Rate *
Winnipeg RHA 76,915 584 7.4 7.2
Southern Health-Santé Sud 19,903 139 6.6 7.2
Interlake-Eastern RHA 11,978 88 6.6 6.5
Prairie Mountain Health 14,687 148 8.6 7.8
Northern Health Region 18,490 83 10.7 12.6

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.

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Figure 5. Vaccination Status in Monthly Hospital Admissions, ICU Admissions, and Deaths, Manitoba, March 1, 2022 – March 31, 2022


Note: Hospital admissions include ICU admissions. More

Unvaccinated Case: Individuals not vaccinated or vaccinated 0–13 days following the first dose of a COVID-19 vaccine. Partially Vaccinated Case: Individuals vaccinated >=14 days following the first dose of a 2-dose series COVID-19 vaccine if only one dose was received and 0-13 days following the second dose if two doses were received. Fully Vaccinated Case: Individuals vaccinated >=14 days following the second dose of a 2-dose series or first dose of a 1-dose series of a COVID-19 vaccine. After First Booster Dose: Individuals vaccinated >=14 days following one additional dose after completion of primary series.

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Figure 6. Age-Standardized Rate (/100,000 person days) and Risk of Severe Outcomes Associated with COVID-19 Manitoba, March 1, 2022 – March 31, 2022

Note: Hospital admissions include ICU admissions. More

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Table 2. Severe COVID-19 Cases After Infection, Manitoba, December 16, 2020 – April 30, 2022

Partially vaccinated % Fully vaccinated % After First Booster Dose %
Hospital Admissions
5-11 14 3.0% 9 0.4% 0 0.0%
12-19 10 2.1% 126 5.0% 5 0.3%
20-29 38 8.0% 327 13.0% 38 2.6%
30-39 57 12.0% 319 12.7% 67 4.6%
40-49 33 7.0% 231 9.2% 86 5.9%
50-59 81 17.1% 294 11.7% 116 8.0%
60-69 91 19.2% 382 15.2% 246 16.9%
70+ 150 31.6% 831 33.0% 896 61.6%
Total hospitalizations 474 100% 2,519 100% 1,454 100%
ICU Admissions
5-11 1 1.4% 1 0.5% 0 0.0%
12-19 1 1.4% 4 2.1% 1 1.3%
20-29 1 1.4% 14 7.4% 1 1.3%
30-39 4 5.7% 14 7.4% 2 2.5%
40-49 3 4.3% 26 13.8% 9 11.4%
50-59 19 27.1% 37 19.7% 7 8.9%
60-69 22 31.4% 50 26.6% 25 31.6%
70+ 19 27.1% 42 22.3% 34 43.0%
Total ICU admissions 70 100% 188 100% 79 100%
Deaths
12-19 0 0.0% 0 0.0% 0 0.0%
20-29 1 1.6% 2 0.9% 0 0.0%
30-39 1 1.6% 1 0.5% 0 0.0%
40-49 0 0.0% 6 2.8% 3 1.9%
50-59 14 21.9% 21 9.7% 4 2.5%
60-69 15 23.4% 43 19.9% 17 10.6%
70+ 33 51.6% 143 66.2% 136 85.0%
Total deaths 64 100% 216 100% 160 100%

Note: Hospital admissions include ICU admissions.

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Testing

Figure 7. Average Daily Testing Volume and Positivity (%) for COVID-19 by Week of Specimen Receiving Date, Manitoba, August 23, 2020 – April 30, 2022

Weekly Testing (.csv)

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Severity

Figure 8. Severe Outcomes of COVID-19 by Week of Outcome Date, Manitoba, August 23, 2020 – April 30, 2022

Weekly severe outcomes (.csv)

Note. ICU admissions are not included in the hospital admissions.

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Figure 9. Age Distribution of Severe COVID-19 Cases Compared to All Cases, Manitoba, March 13, 2020 – April 30, 2022

Age distribution of new severe outcomes (.csv)

Age distribution of severe outcomes (.csv)

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Figure 10. Percentage of COVID-19 Cases With Underlying Illnesses, Manitoba, March 13, 2020 – April 30, 2022

Note. Musculoskeletal illnesses include: osteoporosis, osteoarthritis, juvenile idiopathic arthritis, gout and crystal Arthropathies; COPD-chronic obstructive pulmonary disease; CVD-cardiovascular disease; Other CVDs include: ischemic heart disease, heart failure, acute myocardial infarction, and stroke; Other chronic conditions include: parkinson’s disease, multiple sclerosis, alzheimer’s disease and epilepsy. About definitions of chronic conditions

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Outbreaks

Figure 11. Weekly COVID-19 Outbreaks, Manitoba, 2018 – 2022

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