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 2 (January 9 – January 15)

About epidemiological week

Data extracted up to 1:00 am on January 21, 2022
Next reporting date: January 31, 2022

COVID-19: High Activity

In Week 2, there were 9,987 laboratory-confirmed COVID-19 cases reported in Manitoba, a decrease from 15,926 in the previous week. The volume of lab tests decreased to on average 3,709 people tested for COVID-19 per day compared to 5,077 in the previous week, and the positivity rate of lab tests was 39.2%, an increase from 46.1% in the previous week.

In the 9,987 cases reported this week, 55% were reported from the Winnipeg Regional Health Authority and 14% were reported from the Northern Health Region. The remaining cases were reported from Prairie Mountain Health Authority (12%), Southern Health - Santé Sud Regional Health Authority (11%), and Interlake-Eastern Regional Health Authority (8%).

In all Manitoba residents, 80.8% of residents have been partially vaccinated and 74.4% have been fully vaccinated.

Cases

About cases

  • New cases: 9,987
  • Total cases: 109,980
  • Recovered cases: 75,951
More Analyses

Testing

About testing

This week:

  • Average daily specimens: 3,709
  • Weekly positivity rate: 39.2%

Total:

  • Tested people: 693,569
  • Population tested: 50.8%
  • Specimens tested: 1,360,320
  • Positivity rate: 8.9%
More Analyses

Severity

About severity

Severe outcomes associated with COVID-19:

  • Hospitalizations: 6,194
    • ICU admissions3: 1,210
  • Deaths: 1,485
More Analyses

Outbreaks

About outbreaks

2022 COVID-19 outbreaks: 45

  • Outbreaks in long-term care facilities: 24
  • Outbreaks in schools: 0

Total COVID-19 outbreaks: 368

  • Total outbreaks in long-term care facilities: 173
  • Total outbreaks in schools: 33
More Analyses

Exposure

About exposure

Source of infection in cases (% of total):

  • Travel: 1.7%
  • Close contact to cases: 44.5%
  • Unknown: 26.1%
  • Pending: 27.6%

Top five outbreak/cluster/special investigation settings:4

  • Workplace: 32.9%
  • School: 13.9%
  • Long term care facility: 12.1%
  • Industrial setting: 10.0%
  • Food processing facility: 9.8%
More Analyses

Transmission and Acquisition

About transmission and acquisition

Top five transmission settings in all cases:5

  • Household: 50.1%
  • Social gathering: 10.8%
  • Workplace: 8.9%
  • School: 2.9%
  • Transportation: 2.6%

Top five acquisition settings in cases with unknown source of infection:6

  • Household: 42.9%
  • Workplace: 16.7%
  • Social gathering: 9.2%
  • Retail: 5.4%
  • Food services establishments: 4.0%
More Analyses

Symptoms

About symptoms

Symptomatic cases: 63.5%

Top symptoms (% of reports):

  • Cough: 49.5%
  • Headache: 37.9%
  • Sore Throat: 32.7%
  • Fever: 31.9%
  • Runny nose: 28.9%
More Analyses

Risk Factors

About risk factors

  • Pregnant cases: 1,009
  • Health care workers7: 5,413
  • Deceased health care workers: 5
  • Recovered health care workers: 3,999
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. The top five settings where cases are found to be linked with an outbreak or cluster or special investigation.
  5. Transmission settings include those settings exposed during a case’s communicability period, i.e., 48 hours prior to the development of overt symptoms in the case until the case is classified as no longer infectious. Percentages are calculated using total cases counts as a denominator. Categories are NOT mutually exclusive.
  6. Acquisition settings include those settings exposed during a case’s incubation period, i.e., 14 days before symptom onset date. Percentages are calculated using community-transmitted case counts as a denominator for acquisition settings. Categories are NOT mutually exclusive.
  7. 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 – January 15, 2022

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

Figure 2. Sex and Age Distribution of COVID-19 Cases, March 1, 2020 – January 15, 2022

Back

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 – January 15, 2022

Back

Figure 4. Cases of COVID-19 by Health Region and Public Health Report Date, Manitoba, February 1, 2021 – January 15, 2022

Back

Table 1. Cases of COVID-19 by Health Region, Manitoba, March 13, 2020 – January 15, 2022

Health Region Total Cases Cases this week Incidence Rate Age-standardized Incidence Rate *
Winnipeg RHA 62646 5487 69.3 69.0
Southern Health-Santé Sud 16562 1074 50.7 50.9
Interlake-Eastern RHA 8443 820 61.3 63.7
Prairie Mountain Health 9752 1248 72.3 74.0
Northern Health Region 12577 1358 175.7 172.7

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.

Back

Figure 5. Vaccination Status in Monthly New Cases, Non-ICU Hospital Admissions, ICU Admissions, and Deaths, Manitoba, December 19, 2021 – December 25, 2021


Note: Content is updated monthly from January 2022 onwards.

Unprotected Case: Individuals 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.

Back


Table 2. COVID-19 Cases After Vaccination, Manitoba, December 16, 2020 – January 15, 2022

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

Partially vaccinated % Incidence Rate Fully vaccinated % Incidence Rate
AZ/COVISHIELD 424 9.3% 514.9 179 0.5% 2217.0
Janssen N/A N/A N/A 40 0.1% 2715.6
Moderna 733 16.1% 347.2 6,535 19.9% 3366.0
Pfizer 1,893 41.6% 243.4 18,495 56.4% 2947.7
Pfizer Pediatric 1,503 33.0% 2359.0 18 0.1% 729.3
Mixed vaccine products N/A N/A N/A 7,540 23.0% 6776.7
Total 4,553 100% 242.2 32,807 100% 1800.1

2b. Cases After Infection by Age Group

Partially vaccinated % Fully vaccinated %
5-11 1,508 33.1% 19 0.1%
12-19 279 6.1% 3,808 11.6%
20-29 447 9.8% 8,134 24.8%
30-39 446 9.8% 6,616 20.2%
40-49 455 10.0% 6,055 18.5%
50-59 529 11.6% 4,336 13.2%
60-69 463 10.2% 2,229 6.8%
70-79 260 5.7% 993 3.0%
80+ 167 3.7% 617 1.9%
Total 4,554 100% 32,807 100%

2c. Severe Cases After Infection

Partially vaccinated % Fully vaccinated %
Hospitalizations (including ICU admissions)
5-11 3 1.1% 0 0.0%
12-19 4 1.4% 36 3.8%
20-29 19 6.7% 85 9.0%
30-39 24 8.5% 93 9.9%
40-49 18 6.4% 63 6.7%
50-59 46 16.3% 95 10.1%
60-69 60 21.3% 144 15.3%
70+ 108 38.3% 425 45.2%
Total hospitalizations 282 100% 941 100%
Deaths
12-19 0 0.0% 0 0.0%
20-29 0 0.0% 0 0.0%
30-39 1 1.8% 1 0.9%
40-49 0 0.0% 3 2.7%
50-59 14 25.0% 10 9.1%
60-69 14 25.0% 23 20.9%
70+ 27 48.2% 73 66.4%
Total deaths 56 100% 110 100%

2d. Cases After Vaccination by Sex

Partially vaccinated % Fully vaccinated %
Infections in females 2,341 51.4% 17,121 52.2%
Infections in males 2,213 48.6% 15,678 47.8%
Total 4,554 100% 32,799 100%


Back


Testing

Figure 6. Average Daily Testing Volume and Positivity (%) for COVID-19 by Week of Specimen Receiving Date, Manitoba, August 23, 2020 – January 15, 2022

Back

Table 3. Cumulative National Testing Volume and Positivity (%) for COVID-19 by Province/Territory, Canada, March 13, 2020 – January 15, 2022

Province Confirmed Cases Tests Completed Test Rate in Population (Estimated %) Positivity Rate (Estimated %)
Alberta 436,495 6,551,401 150.6% 6.7%
British Columbia 293,521 5,245,938 103.9% 5.6%
Manitoba 107,838 1,383,076 101.4% 7.8%
New Brunswick 21,979 657,689 85.0% 3.3%
Newfoundland and Labrador 12,092 507,551 97.1% 2.4%
Northwest Territories 3,741 39,130 87.1% 9.6%
Nova Scotia 29,627 1,646,319 170.3% 1.8%
Nunavut 1,055 27,220 70.4% 3.9%
Ontario 926,904 21,836,149 150.8% 4.2%
Prince Edward Island 3,861 253,419 162.8% 1.5%
Quebec 783,102 15,338,925 181.6% 5.1%
Saskatchewan 97,545 1,369,514 116.9% 7.1%
Yukon 2,638 9,129 22.5% 28.9%
Canada 2,720,411 54,865,536 146.7% 5.0%

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

Back

Severity

Figure 7. Severe Outcomes of COVID-19 by Week of Public Health Report Date, Manitoba, August 23, 2020 – January 15, 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 – January 15, 2022

Figure 9. Percentage of COVID-19 Cases With Underlying Illnesses, Manitoba, March 13, 2020 – January 15, 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

Back

Risk Factors

Table 4. Source of Infection in Health Care Workers with Non-missing Information, Manitoba, March 13, 2020 – January 15, 2022

Source of Infection Cases Percentage
Close contact of known case 2837 52.4%
Pending 303 5.6%
Travel 92 1.7%
Unknown 2181 40.3%
All Cases 5413

Table 5. Roles of Health Care Workers with Non-missing Information, Manitoba, March 13, 2020 – January 15, 2022

Role Cases Percentage
Allied Health, Health Professionals, and Support Staff 3498 64.6%
Nurse/Licensed Practical Nurse 1242 22.9%
Not Identified 467 8.6%
Physician/Physician in training 205 3.8%
All Cases 5413

Back

Outbreaks

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

Back

Contacts

Table 6. COVID-19 Contact Summary in All Cases, Manitoba, March 13, 2020 – January 15, 2022

Regional Health Authority Cases Median Contacts Minimum Contacts Maximum Contacts
Winnipeg Health 62646 0 0 249
Southern Health - Sante Sud 16562 1 0 69
Northern Health 12577 0 0 121
Prairie Mountain Health 9752 0 0 134
Interlake-Eastern Health 8443 0 0 76

Table 7. COVID-19 Contact Summary in New Cases Reported in Week 2, Manitoba, 2022

Regional Health Authority Cases Median Contacts Minimum Contacts Maximum Contacts
Winnipeg Health 5487 0 0 6
Northern Health 1358 0 0 15
Prairie Mountain Health 1248 0 0 1
Southern Health - Sante Sud 1074 0 0 4
Interlake-Eastern Health 820 0 0 1

Back

Figure 11. Percentage of COVID-19 Cases Linked to Top-five Cluster/Outbreak/Special Investigation Settings, Manitoba, January 24, 2021 – January 15, 2022

Note: Due to lack of available data, we will stop reporting from Week 3.

COVID-19 public health orders in Manitoba since January 23, 2021: PH order #1 (effective January 23, 2021), PH order #2 (effective March 5, 2021), PH order #3 (effective March 26, 2021), PH order #4 (effective April 19, 2021), PH order #5 (effective April 28, 2021), PH order #6 (effective May 9, 2021), PH order #7 (effective May 22, 2021), PH order #8 (effective May 29, 2021), PH order #9 (effective June 12, 2021), PH order #10 (effective June 26, 2021), PH order #11: (effective July 17, 2021), PH order #12: (effective August 7, 2021), PH order #13: (effective August 28, 2021), PH order #14: (effective October 5, 2021), PH order #15: (effective November 13, 2021), PH order #16: (effective December 21, 2021). Content of Public Health Orders

Back

Figure 12. Percentage of Total COVID-19 Cases Exposed to Top-five Transmission Settings, Manitoba, January 24, 2021 – January 15, 2022

Note: Due to lack of available data, we will stop reporting from Week 3.

COVID-19 public health orders in Manitoba since January 23, 2021: PH order #1 (effective January 23, 2021), PH order #2 (effective March 5, 2021), PH order #3 (effective March 26, 2021), PH order #4 (effective April 19, 2021), PH order #5 (effective April 28, 2021), PH order #6 (effective May 9, 2021), PH order #7 (effective May 22, 2021), PH order #8 (effective May 29, 2021), PH order #9 (effective June 12, 2021), PH order #10 (effective June 26, 2021), PH order #11: (effective July 17, 2021), PH order #12: (effective August 7, 2021), PH order #13: (effective August 28, 2021), PH order #14: (effective October 5, 2021), PH order #15: (effective November 13, 2021), PH order #16: (effective December 21, 2021). Content of Public Health Orders

Back

Figure 13. Percentage of Community-transmitted COVID-19 Cases Exposed to Top-five Acquisition Settings, Manitoba, January 24, 2021 – January 15, 2022

Note: Due to lack of available data, we will stop reporting from Week 3.

COVID-19 public health orders in Manitoba since January 23, 2021: PH order #1 (effective January 23, 2021), PH order #2 (effective March 5, 2021), PH order #3 (effective March 26, 2021), PH order #4 (effective April 19, 2021), PH order #5 (effective April 28, 2021), PH order #6 (effective May 9, 2021), PH order #7 (effective May 22, 2021), PH order #8 (effective May 29, 2021), PH order #9 (effective June 12, 2021), PH order #10 (effective June 26, 2021), PH order #11: (effective July 17, 2021), PH order #12: (effective August 7, 2021), PH order #13: (effective August 28, 2021), PH order #14: (effective October 5, 2021), PH order #15: (effective November 13, 2021), PH order #16: (effective December 21, 2021). Content of Public Health Orders

Back

Symptoms

Figure 14. Percentage of Symptoms Reported by COVID-19 Cases, Manitoba, March 13, 2020 – January 15, 2022

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

Back