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, public health case and contact tracing investigations, hospitalization and mortality data. Data are presented at the provincial and regional level; and include a focussed review on the disproportional impact of COVID-19 on various populations in the province. In this weekly report, we provide regular updates about the current activity of COVID-19 in Manitoba to present a detailed overview about COVID-19 cases and contacts.

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 Monday.

For reporting on seasonal influenza in 2021-2022 season, please visit www.gov.mb.ca/health/publichealth/surveillance/influenza/index.html

Week 5 (January 30 – February 5)

About epidemiological week

Data extracted up to 1:00 am on February 11, 2022
Next reporting date: February 21, 2022

COVID-19: High Activity

In Week 5, there were 3,522 laboratory-confirmed COVID-19 cases reported in Manitoba, a decrease from 4,699 in the previous week. The volume of lab tests decreased to on average 1,765 people tested for COVID-19 per day compared to 2,040 in the previous week, and the positivity rate of lab tests was 27.2%, a decrease from 31.3% in the previous week.

In the 3,522 cases reported this week, 42% were reported from the Winnipeg Regional Health Authority and 23% were reported from the Northern Health Region. The remaining cases were reported from Prairie Mountain Health Authority (15%), Southern Health - Santé Sud Regional Health Authority (10%), and Interlake-Eastern Regional Health Authority (10%).

In all Manitoba residents, 81.8% of residents have been partially vaccinated and 75.5% have been fully vaccinated. By January 31st, 36.6% have received one additional dose.

Cases

About cases

  • New cases: 3,522
  • Total cases: 123,926
  • Recovered cases: 110,424
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Testing

About testing

This week:

  • Average daily specimens: 1,765
  • Weekly positivity rate: 27.2%

Total:

  • Tested people: 704,039
  • Population tested: 51.6%
  • Specimens tested: 1,399,586
  • Positivity rate: 9.4%
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Severity

About severity

Severe outcomes associated with COVID-19:

  • Hospitalizations: 7,420
    • ICU admissions3: 1,323
  • Deaths: 1,615
More Analyses

Outbreaks

About outbreaks

2022 COVID-19 outbreaks: 73

  • Outbreaks in long-term care facilities: 36
  • Outbreaks in schools: 0

Total COVID-19 outbreaks: 396

  • Total outbreaks in long-term care facilities: 185
  • Total outbreaks in schools: 33
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Exposure

About exposure

Source of infection in cases (% of total):

  • Travel: 2.0%
  • Close contact to cases: 43.0%
  • Unknown: 26.3%
  • Pending: 28.7%
More Analyses

Symptoms

About symptoms

Symptomatic cases: 57.7%

Top symptoms (% of reports):

  • Cough: 45.8%
  • Headache: 34.7%
  • Sore Throat: 30.2%
  • Fever: 29.4%
  • Runny nose: 26.9%
More Analyses

Risk Factors

About risk factors

  • Pregnant cases: 1,091
  • Health care workers4: 5,591
  • Deceased health care workers: 5
  • Recovered health care workers: 5,487
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 also included in hospitalizations.
  4. Health care workers include personnels in hospitals, long-term care settings, community health clinics and services (including agency staff), and diagnostic/laboratory services.

Cases

Figure 1. Cases of COVID-19 by Week of Public Health Report Date, Manitoba, August 23, 2020 – February 5, 2022

Note. Deaths due to COVID-19 were aligned by week of death date.
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Figure 2. Sex and Age Distribution of COVID-19 Cases, March 1, 2020 – February 5, 2022

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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 – February 5, 2022

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Figure 4. Cases of COVID-19 by Health Region and Public Health Report Date, Manitoba, March 1, 2021 – February 5, 2022

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Table 1. Cases of COVID-19 and Incidence Rate (/10,000 population) by Health Region, Manitoba, March 13, 2020 – February 5, 2022

Health Region Total Cases Cases this week Incidence Rate Age-standardized Incidence Rate *
Winnipeg RHA 69354 1466 18.5 18.6
Southern Health-Santé Sud 17939 364 17.2 17.1
Interlake-Eastern RHA 9845 350 26.2 27.3
Prairie Mountain Health 11858 535 31.0 31.5
Northern Health Region 14930 807 104.4 102.6

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 New Cases, Hospital Admissions, ICU Admissions, and Deaths, Manitoba, January 1, 2022 – January 31, 2022


Note: Content is updated monthly from January 2022 onwards. Hospital admissions include ICU admissions.

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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Table 2. COVID-19 Cases After Vaccination, Manitoba, December 16, 2020 – February 5, 2022

2a. Cases and Incidence Rate (/100,000 Vaccinated Individuals) After Vaccination, Overall

Partially vaccinated Incidence Rate Fully Vaccinated Incidence Rate After First Booster Dose Incidence Rate
Asymptomatic 2,142 186.4 17,129 1602.7 3,203 593.8
Symptomatic 3,248 282.7 22,032 2061.5 3,726 690.7
All 5,390 469.1 39,161 3664.1 6,929 1284.5

2b. Cases After Infection by Age Group

Partially vaccinated % Fully vaccinated % After First Booster Dose %
5-11 2,114 39.2% 78 0.2% 0 0.0%
12-19 326 6.0% 4,702 12.0% 67 1.0%
20-29 496 9.2% 9,457 24.1% 784 11.3%
30-39 508 9.4% 7,975 20.4% 1,050 15.2%
40-49 482 8.9% 7,189 18.4% 1,338 19.3%
50-59 555 10.3% 5,119 13.1% 1,218 17.6%
60-69 469 8.7% 2,618 6.7% 866 12.5%
70-79 273 5.1% 1,202 3.1% 577 8.3%
80+ 169 3.1% 821 2.1% 1,029 14.9%
Total 5,392 100% 39,161 100% 6,929 100%

2c. Severe Cases After Infection

Partially vaccinated % Fully vaccinated % After First Booster Dose %
Hospital Admissions
5-11 8 2.0% 0 0.0% 0 0.0%
12-19 7 1.8% 60 3.6% 1 0.2%
20-29 28 7.0% 188 11.3% 11 2.7%
30-39 38 9.5% 182 10.9% 20 5.0%
40-49 29 7.3% 144 8.6% 19 4.7%
50-59 70 17.6% 176 10.5% 34 8.5%
60-69 87 21.9% 274 16.4% 86 21.4%
70+ 131 32.9% 645 38.6% 230 57.4%
Total hospitalizations 398 100% 1,669 100% 401 100%
Deaths
12-19 0 0.0% 0 0.0% 0 0.0%
20-29 0 0.0% 1 0.6% 0 0.0%
30-39 1 1.6% 1 0.6% 0 0.0%
40-49 0 0.0% 3 1.8% 1 1.7%
50-59 14 23.0% 13 7.8% 0 0.0%
60-69 15 24.6% 32 19.3% 6 10.2%
70+ 31 50.8% 116 69.9% 52 88.1%
Total deaths 61 100% 166 100% 59 100%

2d. Cases After Vaccination by Sex

Partially vaccinated % Fully vaccinated % After First Booster Dose %
Infections in females 2,765 51.3% 20,523 52.4% 4,293 62.0%
Infections in males 2,626 48.7% 18,626 47.6% 2,635 38.0%
Total 5,391 100% 39,149 100% 6,928 100%


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Testing

Figure 6. Average Daily Testing Volume and Positivity (%) for COVID-19 by Week of Specimen Receiving Date, Manitoba, August 23, 2020 – February 5, 2022

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Table 3. Cumulative National Testing Volume and Positivity (%) for COVID-19 by Province/Territory, Canada, March 13, 2020 – February 5, 2022

Province Confirmed Cases Tests Completed Test Rate in Population (Estimated %) Positivity Rate (Estimated %)
Alberta 503,433 6,746,196 155.1% 7.5%
British Columbia 330,638 5,466,936 108.3% 6.0%
Manitoba 122,632 1,429,072 104.7% 8.6%
New Brunswick 30,306 701,124 90.6% 4.3%
Newfoundland and Labrador 18,242 548,443 104.9% 3.3%
Northwest Territories 6,550 39,811 88.6% 16.5%
Nova Scotia 39,723 1,719,778 177.9% 2.3%
Nunavut 1,935 31,699 82.0% 6.1%
Ontario 1,047,970 22,541,086 155.6% 4.6%
Prince Edward Island 8,764 255,394 164.1% 3.4%
Quebec 875,429 15,943,160 188.7% 5.5%
Saskatchewan 121,516 1,444,528 123.4% 8.4%
Yukon 3,186 9,129 22.5% 34.9%
Canada 3,110,337 56,876,432 152.0% 5.5%

Note. National testing data are collected daily from the national Coronavirus disease (COVID-19) Outbreak update webpage.

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Severity

Figure 7. Severe Outcomes of COVID-19 by Week of Public Health Report Date, Manitoba, August 23, 2020 – February 5, 2022

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

Figure 8. Age Distribution of Severe COVID-19 Cases Compared to All Cases, Manitoba, March 13, 2020 – February 5, 2022

Figure 9. Percentage of COVID-19 Cases With Underlying Illnesses, Manitoba, March 13, 2020 – February 5, 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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Risk Factors

Table 4. Source of Infection in Health Care Workers with Non-missing Information, Manitoba, March 13, 2020 – February 5, 2022

Source of Infection Cases Percentage
Close contact of known case 2922 52.3%
Pending 315 5.6%
Travel 98 1.8%
Unknown 2256 40.4%
All Cases 5591

Table 5. Roles of Health Care Workers with Non-missing Information, Manitoba, March 13, 2020 – February 5, 2022

Role Cases Percentage
Allied Health, Health Professionals, and Support Staff 3585 64.1%
Nurse/Licensed Practical Nurse 1291 23.1%
Not Identified 500 8.9%
Physician/Physician in training 214 3.8%
All Cases 5591

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Outbreaks

Figure 10. Weekly COVID-19 Outbreaks, Manitoba, 2018 – 2022

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Contacts

Table 6. COVID-19 Contact Summary in All Cases, Manitoba, March 13, 2020 – February 5, 2022

Regional Health Authority Cases Median Contacts Minimum Contacts Maximum Contacts
Winnipeg Health 69354 0 0 249
Southern Health - Sante Sud 17939 1 0 69
Northern Health 14930 0 0 121
Prairie Mountain Health 11858 0 0 134
Interlake-Eastern Health 9845 0 0 76

Table 7. COVID-19 Contact Summary in New Cases Reported in Week 5, Manitoba, 2022

Regional Health Authority Cases Median Contacts Minimum Contacts Maximum Contacts
Winnipeg Health 1466 0 0 2
Northern Health 807 0 0 11
Prairie Mountain Health 535 0 0 0
Southern Health - Sante Sud 364 0 0 3
Interlake-Eastern Health 350 0 0 2

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Symptoms

Figure 11. Percentage of Symptoms Reported by COVID-19 Cases, Manitoba, March 13, 2020 – February 5, 2022

Note: Other symptoms include those less common symptoms such as sweating, runny eyes, itchy throat, etc.

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