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COVID-19 in Ontario: January 15, 2020 to December 15, 2020 · Middlesex -London Health Unit 31 12...
Transcript of COVID-19 in Ontario: January 15, 2020 to December 15, 2020 · Middlesex -London Health Unit 31 12...
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COVID-19 in Ontario: January 15, 2020 to December 15, 2020 1
Daily Epidemiologic Summary
COVID-19 in Ontario: January 15, 2020 to December 15, 2020
This report includes the most current information available from CCM and other case management systems (CCM plus) as of December 15, 2020.
Please visit the interactive Ontario COVID-19 Data Tool to explore recent COVID-19 data by public health unit, age group, sex, and trends over time.
A weekly summary report is available with additional information to complement the daily report.
This daily report provides an epidemiologic summary of recent COVID-19 activity in Ontario. The change in cases is determined by taking the cumulative difference between the current day and the previous day.
Highlights There are a total of 146,535 confirmed cases of COVID-19 in Ontario reported to date.
Compared to the previous day, this represents:
An increase of 2,139 confirmed cases (percent change of -6.0%)
An increase of 43 deaths (percent change of +115.0%)
An increase of 2,043 resolved cases (percent change of +12.9%)
In this document, the term ‘change in cases’ refers to cases publicly reported by the province for a given day. Data corrections or updates can result in case records being removed and or updated from past reports and may result in subset totals for updated case counts (i.e., age group, gender) differing from the overall updated case counts.
The term public health unit reported date in this document refers to the date local public health units were first notified of the case.
https://www.publichealthontario.ca/en/data-and-analysis/infectious-disease/covid-19-data-surveillance/covid-19-data-tool
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COVID-19 in Ontario: January 15, 2020 to December 15, 2020 2
Case Characteristics
Table 1a. Summary of recent confirmed cases of COVID-19: Ontario
Change in cases
December 14
Change in cases
December 15
Percentage change
December 15 compared to December 14
Cumulative case count
as of December 15
Total number of cases 2,275 2,139 -6.0% 146,535
Number of deaths 20 43 +115.0% 4,035
Number resolved 1,810 2,043 +12.9% 125,416
Note: The number of cases publicly reported by the province each day may not align with case counts reported to public health on a given day; public health unit reported date refers to the date local public health was first notified of the case. Data corrections or updates can result in case records being removed and or updated from past reports.
Data Source: CCM plus
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COVID-19 in Ontario: January 15, 2020 to December 15, 2020 3
Table 1b. Summary of recent confirmed cases of COVID-19 by age group and gender: Ontario
Change in cases
December 14
Change in cases
December 15
Cumulative case count
as of December 15
Gender: Male 1,132 1,067 71,810
Gender: Female 1,133 1,044 73,838
Ages: 19 and under 341 352 18,563
Ages: 20-39 815 819 53,620
Ages: 40-59 672 618 42,004
Ages: 60-79 322 277 21,032
Ages: 80 and over 124 74 11,292
Note: Not all cases have a reported age or gender reported. Data corrections or updates can result in case records being removed and or updated from past reports and may result in subset totals (i.e., age group, gender) differing from past publicly reported case counts.
Data Source: CCM plus
Table 2. Summary of recent confirmed cases of COVID-19 in school aged children by age group, August 30 to December 15, 2020: Ontario
Change in cases
December 14
Change in cases
December 15
Cumulative case count from August 30 to
December 15
Ages: 4 to 8 67 85 2,917
Ages: 9 to 13 90 104 4,050
Ages: 14 to 17 86 86 3,907
Note: Includes all confirmed cases of COVID-19 for specified ages, regardless of school attendance. Data corrections or updates can result in case records being removed and or updated from past reports and may result in subset totals (i.e., age group) differing from past publicly reported case counts.
Data Source: CCM plus
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COVID-19 in Ontario: January 15, 2020 to December 15, 2020 4
Table 3. Summary of recent confirmed cases of COVID-19 in long-term care homes: Ontario
Long-term care home cases Change in cases
December 14
Change in cases
December 15
Cumulative case count as of December 15
Residents 20 84 9,462
Health care workers 8 31 3,717
Deaths among residents 1 22 2,513
Deaths among health care workers
0 0 8
Note: Information on how long-term care home residents and health care workers are identified is available in the technical notes. Also, the change in cases in these categories may represent existing case records that have been updated.
Data Source: CCM plus
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COVID-19 in Ontario: January 15, 2020 to December 15, 2020 5
Time
Figure 1. Confirmed cases of COVID-19 by likely acquisition and public health unit reported date: Ontario, January 15, 2020 to December 15, 2020
Data Source: CCM plus
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COVID-19 in Ontario: January 15, 2020 to December 15, 2020 6
Figure 2. Confirmed cases of COVID-19 by likely acquisition and approximation of symptom onset date: Ontario, January 15, 2020 to December 15, 2020
Note: Not all cases may have an episode date and those without one are not included in the figure. Episode date is defined and available in the technical notes.
Data Source: CCM plus
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COVID-19 in Ontario: January 15, 2020 to December 15, 2020 7
Figure 3. Number of COVID-19 tests completed and percent positivity: Ontario, March 29, 2020 to December 14, 2020
Note: The number of tests performed does not reflect the number of specimens or persons tested. More than one test may be performed per specimen or per person. As such, the percentage of tests that were positive does not necessarily translate to the number of specimens or persons testing positive.
Data Source: The Provincial COVID-19 Diagnostics Network, data reported by member microbiology laboratories.
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COVID-19 in Ontario: January 15, 2020 to December 15, 2020 8
Severity Figure 4. Confirmed deaths among COVID-19 cases by date of death: Ontario, March 1, 2020 to December 15, 2020
Note: Cases without a death date are not included in the figure.
Data Source: CCM plus
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COVID-19 in Ontario: January 15, 2020 to December 15, 2020 9
Table 4. Confirmed cases of COVID-19 by severity: Ontario
Blank cell Cumulative case count
as of December 15 Percentage of all
cases
Cumulative deaths reported (please note there may be a reporting delay for deaths)
4,035 2.8%
Deaths reported in ages: 19 and under 1 0.0%
Deaths reported in ages: 20-39 15 0.0%
Deaths reported in ages: 40-59 161 0.4%
Deaths reported in ages: 60-79 1,054 5.0%
Deaths reported in ages: 80 and over 2,804 24.8%
Ever in ICU 1,658 1.1%
Ever hospitalized 8,494 5.8%
Note: Not all cases have an age reported. Data corrections or updates can result in case records being removed and/or updated and may result in totals differing from past publicly reported case counts.
Data Source: CCM plus
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COVID-19 in Ontario: January 15, 2020 to December 15, 2020 10
Geography
Table 5. Summary of recent confirmed cases of COVID-19 by public health unit and region: Ontario
Public Health Unit Name Change in
cases December 14
Change in cases
December 15
Cumulative case count
Cumulative rate per 100,000 population
Northwestern Health Unit 1 1 136 155.1
Thunder Bay District Health Unit 3 11 449 299.4
TOTAL NORTH WEST 4 12 585 246.2
Algoma Public Health 0 0 62 54.2
North Bay Parry Sound District Health Unit
2 2 96 74.9
Porcupine Health Unit 1 0 118 141.4
Public Health Sudbury & Districts 4 -2 244 122.6
Timiskaming Health Unit 1 0 28 85.7
TOTAL NORTH EAST 8 0 548 98.0
Ottawa Public Health -9 36 9,138 866.4
Eastern Ontario Health Unit 11 10 1,119 536.1
Hastings Prince Edward Public Health
4 7 231 137.1
Kingston, Frontenac and Lennox & Addington Public Health
5 15 409 192.3
Leeds, Grenville & Lanark District Health Unit
3 4 604 348.8
Renfrew County and District Health Unit
2 0 203 186.9
TOTAL EASTERN 16 72 11,704 607.6
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COVID-19 in Ontario: January 15, 2020 to December 15, 2020 11
Public Health Unit Name Change in
cases December 14
Change in cases
December 15
Cumulative case count
Cumulative rate per 100,000 population
Durham Region Health Department 92 143 5,832 818.6
Haliburton, Kawartha, Pine Ridge District Health Unit
8 3 418 221.2
Peel Public Health 586 528 32,756 2,039.7
Peterborough Public Health 1 3 250 168.9
Simcoe Muskoka District Health Unit
55 46 2,778 463.3
York Region Public Health 154 148 13,658 1,114.2
TOTAL CENTRAL EAST 896 871 55,692 1,242.9
Toronto Public Health 711 780 48,651 1,559.1
TOTAL TORONTO 711 780 48,651 1,559.1
Chatham-Kent Public Health 8 4 557 523.9
Grey Bruce Health Unit 2 0 381 224.3
Huron Perth Public Health 12 13 485 347.0
Lambton Public Health 5 0 455 347.4
Middlesex-London Health Unit 31 12 2,142 422.0
Southwestern Public Health 21 11 791 374.0
Windsor-Essex County Health Unit 185 111 4,985 1,173.4
TOTAL SOUTH WEST 264 151 9,796 579.4
Brant County Health Unit 28 7 762 491.0
City of Hamilton Public Health Services
99 47 4,406 744.1
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COVID-19 in Ontario: January 15, 2020 to December 15, 2020 12
Public Health Unit Name Change in
cases December 14
Change in cases
December 15
Cumulative case count
Cumulative rate per 100,000 population
Haldimand-Norfolk Health Unit 11 8 729 639.0
Halton Region Public Health 65 55 4,430 715.6
Niagara Region Public Health 65 51 2,707 572.9
Region of Waterloo Public Health and Emergency Services
71 52 4,616 789.9
Wellington-Dufferin-Guelph Public Health
37 33 1,909 612.0
TOTAL CENTRAL WEST 376 253 19,559 686.5
TOTAL ONTARIO 2,275 2,139 146,535 985.8
Notes: Health units with data corrections or updates could result in records being removed from totals resulting in negative counts.
Data Source: CCM plus
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COVID-19 in Ontario: January 15, 2020 to December 15, 2020 13
Outbreaks
Table 6. Summary of recent confirmed COVID-19 outbreaks reported in long-term care homes, retirement homes and hospitals by status: Ontario
Institution type Change in outbreaks
December 14
Change in outbreaks
December 15
Number of ongoing
outbreaks
Cumulative number of outbreaks reported
Long-term care homes 1 10 143 800
Retirement homes 3 7 84 414
Hospitals 2 2 44 201
Note: Ongoing outbreaks includes all outbreaks that are ‘Open’ in CCM plus without a ‘Declared Over Date’ recorded.
Data Source: CCM plus
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COVID-19 in Ontario: January 15, 2020 to December 15, 2020 14
Technical Notes
Data Sources The data for this report were based on:
Information extracted from the Ontario Ministry of Health (Ministry) integrated Public Health Information System (iPHIS) database for Toronto Public Health as of December 15, 2020 at 3 p.m.
Information successfully uploaded to the Ministry from Local Systems: Toronto Public Health (Coronavirus Rapid Entry System) CORES as of December 15, 2020 at 2 p.m.
Information successfully extracted from the Public Health Case and Contact Management Solution (CCM) for all other PHUs by PHO as of December 15, 2020 at 1 p.m.
CCM and CCM plus (which includes CCM, iPHIS, and CORES) are dynamic disease reporting systems, which allow ongoing updates to data previously entered. As a result, data extracted from CCM and the Local Systems represent a snapshot at the time of extraction and may differ from previous or subsequent reports.
Ontario population projection data for 2020 were sourced from Ministry, IntelliHEALTH Ontario. Data were extracted on November 26, 2019.
COVID-19 test data were based on information from The Provincial COVID-19 Diagnostics Network, reported by member microbiology laboratories.
Data Caveats The data only represent cases reported to public health units and recorded in CCM plus. As a
result, all counts will be subject to varying degrees of underreporting due to a variety of factors, such as disease awareness and medical care seeking behaviours, which may depend on severity of illness, clinical practice, changes in laboratory testing, and reporting behaviours.
Lags in CCM plus data entry due to weekend staffing may result in lower case counts than would otherwise be recorded.
Only cases meeting the confirmed case classification as listed in the MOH COVID-19 case definition are included in the report counts from CCM plus. This includes persons with a positive detection of serum/plasma immunoglobulin G (IgG) antibodies to SARS-CoV-2, which was added to the confirmed case definition on August 6, 2020.
The number of tests performed does not reflect the number of specimens or persons tested. More than one test may be performed per specimen or per person. As such, the percentage of tests that were positive does not necessarily translate to the number of specimens or persons testing positive.
Reported date is the date the case was reported to the public health unit.
http://www.health.gov.on.ca/en/pro/programs/publichealth/coronavirus/2019_guidance.aspxhttp://www.health.gov.on.ca/en/pro/programs/publichealth/coronavirus/2019_guidance.aspx
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COVID-19 in Ontario: January 15, 2020 to December 15, 2020 15
Case episode date is based on an estimate of the best date of disease onset. This date is calculated based on either the date of symptom onset, specimen collection/test date, or the date reported to the public health unit.
Resolved cases are determined only for COVID-19 cases that have not died. Cases that have died are considered fatal and not resolved. The following cases are classified as resolved:
Cases that are reported as ‘recovered’ in CCM
Cases that are not hospitalized and are 14 days past their episode date
Cases that are currently hospitalized (no hospital end date entered) and have a status of ‘closed’ in CCM (indicating public health unit follow-up is complete) and are 14 days past their symptom onset date or specimen collection date
Hospitalization includes all cases for which a hospital admission date was reported at the time of data extraction. It includes cases that have been discharged from hospital as well as cases that are currently hospitalized. Emergency room visits are not included in the number of reported hospitalizations.
ICU admission includes all cases for which an ICU admission date was reported at the time of data extraction. It is a subset of the count of hospitalized cases. It includes cases that have been treated or that are currently being treated in an ICU.
Orientation of case counts by geography is based on the diagnosing health unit (DHU). DHU refers to the case's public health unit of residence at the time of illness onset and not necessarily the location of exposure. Cases for which the DHU was reported as MOH (to signify a case that is not a resident of Ontario) have been excluded from the analyses.
Likely source of acquisition is determined by examining the epidemiologic link and epidemiologic link status fields in CCM and local systems. If no epidemiologic link is identified in those fields the risk factor fields are examined to determine whether a case travelled, was associated with a confirmed outbreak, was a contact of a case, had no known epidemiological link (sporadic community transmission) or was reported to have an unknown source/no information was reported. Some cases may have no information reported if the case is untraceable, was lost to follow-up or referred to FNIHB. Cases with multiple risk factors were assigned to a single likely acquisition source group which was determined hierarchically in the following order:
For cases with an episode date on or after April 1, 2020: Outbreak-associated > close contact of a confirmed case > travel > no known epidemiological link > information missing or unknown
For cases with an episode date before April 1, 2020: Travel > outbreak-associated > close contact of a confirmed case > no known epidemiological link > information missing or unknown
Deaths are determined by using the outcome field in CCM plus. Any case marked ‘Fatal’ is included in the deaths data. The CCM field Type of Death is not used to further categorize the data.
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COVID-19 in Ontario: January 15, 2020 to December 15, 2020 16
The date of death is determined using the outcome date field for cases marked as ‘Fatal’ in the outcome field.
COVID-19 cases from CCM plus for which the Classification and/or Disposition was reported as ENTERED IN ERROR, DOES NOT MEET DEFINITION, IGNORE, DUPLICATE, or any variation on these values have been excluded. The provincial case count for COVID-19 includes cases that are counted once across all systems from which the case data are obtained. Duplicate records may exist if these records were not identified and resolved prior to data upload to the Ministry.
Ongoing outbreaks are those that are reported in CCM plus as ‘Open’ without a ‘Declared Over Date’ recorded.
‘Long-term care home residents’ includes cases that reported ‘Yes’ to the risk factor ‘Resident of a long-term care home’; or ‘Yes’ to the risk factor ‘Resident of nursing home or other chronic care facility’ and reported to be part of an outbreak assigned as a long-term care home (via the Outbreak number or case comments field); or were reported to be part of an outbreak assigned as a long-term care home (via the outbreak number or case comments field) with an age over 70 years and did not report ‘No’ to the risk factors ‘Resident of long-term care home’ or ‘Resident of nursing home or other chronic care facility’. ‘Long-term care home residents’ excludes cases that reported ‘Yes’ to any of the health care worker occupational risk factors.
The ‘health care workers’ variable includes cases that reported ‘Yes’ to any of the occupation of health care worker, doctor, nurse, dentist, dental hygienist, midwife, other medical technicians, personal support worker, respiratory therapist, first responder.
‘Health care workers associated with long-term care outbreaks’ includes ‘health care workers’ reported to be part of an outbreak assigned as a long-term care home (via the outbreak number or case comments field). Excludes cases that reported ‘Yes’ to risk factors ‘Resident of long-term care home’ or ‘Resident of nursing home or other chronic care facility’ and ‘Yes’ to the calculated ‘health care workers’ variable.
Percent change is calculated by taking the difference between the current period (i.e., daily count or sum of the daily count over a 7-day period) and previous period (i.e., daily count or sum of the daily count over a 7-day period), divided by the previous period.
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COVID-19 in Ontario: January 15, 2020 to December 15, 2020 17
Appendix A Table A1. Weekly rates of confirmed COVID-19 cases per 100,000 population over recent rolling 7-day periods, by reported date and public health unit: Ontario, November 30, 2020 to December 12, 2020
Public Health Unit Name
Nov 30 to
Dec 6
Dec 1 to
Dec 7
Dec 2 to
Dec 8
Dec 3 to
Dec 9
Dec 4 to
Dec 10
Dec 5 to
Dec 11
Dec 6 to
Dec 12
% change from
Nov 30-Dec 6 to Dec 6-12
NORTH WEST
Northwestern Health Unit
10.3 11.4 12.5 13.7 10.3 9.1 6.8 -34.0%
Thunder Bay District Health Unit
45.3 42.0 46.7 46.0 44.0 45.3 39.3 -13.2%
NORTH EAST
Algoma Public Health
0.9 0.9 0.9 0.0 0.9 0.9 0.9 0.0%
North Bay Parry Sound District Health Unit
8.5 8.5 8.5 5.4 3.9 5.4 4.6 -45.9%
Porcupine Health Unit
12.0 12.0 10.8 7.2 1.2 0.0 1.2 -90.0%
Public Health Sudbury & Districts
4.0 3.5 5.0 5.0 4.5 4.5 5.0 +25.0%
Timiskaming Health Unit
9.2 12.2 18.4 21.4 24.5 24.5 21.4 +132.6%
EASTERN
Ottawa Public Health
29.6 27.4 29.9 30.0 29.1 30.1 30.1 +1.7%
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COVID-19 in Ontario: January 15, 2020 to December 15, 2020 18
Public Health Unit Name
Nov 30 to
Dec 6
Dec 1 to
Dec 7
Dec 2 to
Dec 8
Dec 3 to
Dec 9
Dec 4 to
Dec 10
Dec 5 to
Dec 11
Dec 6 to
Dec 12
% change from
Nov 30-Dec 6 to Dec 6-12
Eastern Ontario Health Unit
73.3 73.8 67.6 69.0 64.7 60.4 64.2 -12.4%
Hastings Prince Edward Public Health
20.2 20.2 21.4 24.3 27.3 27.9 28.5 +41.1%
Kingston, Frontenac and Lennox & Addington Public Health
24.9 24.4 29.6 32.0 35.3 41.4 40.9 +64.3%
Leeds, Grenville & Lanark District Health Unit
25.4 27.7 31.8 36.4 43.3 41.0 41.0 +61.4%
Renfrew County and District Health Unit
25.8 33.1 33.1 49.7 52.5 39.6 42.3 +64.0%
CENTRAL EAST
Durham Region Health Department
90.1 89.1 83.4 86.9 83.9 88.4 78.2 -13.2%
Haliburton, Kawartha, Pine Ridge District Health Unit
20.1 19.6 16.4 20.1 24.3 28.1 31.2 +55.2%
Peel Public Health
203.1 205.2 198.0 197.5 194.6 193.9 183.9 -9.5%
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COVID-19 in Ontario: January 15, 2020 to December 15, 2020 19
Public Health Unit Name
Nov 30 to
Dec 6
Dec 1 to
Dec 7
Dec 2 to
Dec 8
Dec 3 to
Dec 9
Dec 4 to
Dec 10
Dec 5 to
Dec 11
Dec 6 to
Dec 12
% change from
Nov 30-Dec 6 to Dec 6-12
Peterborough Public Health
9.5 10.1 12.2 10.8 10.8 10.8 12.2 +28.4%
Simcoe Muskoka District Health Unit
50.5 51.9 56.4 55.7 55.4 54.2 53.2 +5.3%
York Region Public Health
109.2 107.9 104.2 109.2 110.2 106.1 101.6 -7.0%
TORONTO
Toronto Public Health
120.2 121.5 124.8 122.9 122.4 120.8 120.8 +0.5%
SOUTH WEST
Chatham-Kent Public Health
33.9 27.3 16.9 21.6 20.7 21.6 22.6 -33.3%
Grey Bruce Health Unit
18.8 15.9 18.8 19.4 18.8 18.8 20.6 +9.6%
Huron Perth Public Health
44.4 45.8 42.9 39.4 35.8 44.4 47.9 +7.9%
Lambton Public Health
15.3 17.6 15.3 19.1 19.1 15.3 16.0 +4.6%
Middlesex-London Health Unit
48.7 45.7 48.7 48.3 47.5 50.8 51.8 +6.4%
Southwestern Public Health
40.7 43.0 37.4 42.6 47.8 48.7 55.8 +37.1%
Windsor-Essex County Health Unit
97.5 106.6 124.0 132.8 136.3 144.1 147.8 +51.6%
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COVID-19 in Ontario: January 15, 2020 to December 15, 2020 20
Public Health Unit Name
Nov 30 to
Dec 6
Dec 1 to
Dec 7
Dec 2 to
Dec 8
Dec 3 to
Dec 9
Dec 4 to
Dec 10
Dec 5 to
Dec 11
Dec 6 to
Dec 12
% change from
Nov 30-Dec 6 to Dec 6-12
CENTRAL WEST
Brant County Health Unit
30.3 31.6 33.5 37.4 41.9 46.4 54.8 +80.9%
City of Hamilton Public Health Services
78.4 84.8 86.1 88.0 92.2 93.4 103.2 +31.6%
Haldimand-Norfolk Health Unit
23.7 25.4 32.4 36.8 45.6 46.5 46.5 +96.2%
Halton Region Public Health
64.4 70.7 69.6 71.1 67.8 70.6 68.6 +6.5%
Niagara Region Public Health
35.8 36.2 39.2 40.4 48.9 55.0 60.1 +67.9%
Region of Waterloo Public Health and Emergency Services
77.5 75.3 69.1 68.1 72.6 77.7 76.8 -0.9%
Wellington-Dufferin-Guelph Public Health
67.3 69.9 77.3 85.6 81.8 80.5 87.5 +30.0%
TOTAL ONTARIO
85.8 86.7 87.0 88.1 88.3 88.7 87.8 +2.3%
Note: Rates are based on the sum of the daily case counts during the date ranges specified in each column.
Data Source: CCM plus
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COVID-19 in Ontario: January 15, 2020 to December 15, 2020 21
Disclaimer This document was developed by Public Health Ontario (PHO). PHO provides scientific and technical advice to Ontario’s government, public health organizations and health care providers. PHO’s work is guided by the current best available evidence at the time of publication.
The application and use of this document is the responsibility of the user. PHO assumes no liability resulting from any such application or use.
This document may be reproduced without permission for non-commercial purposes only and provided that appropriate credit is given to PHO. No changes and/or modifications may be made to this document without express written permission from PHO.
Citation Ontario Agency for Health Protection and Promotion (Public Health Ontario). Epidemiologic summary: COVID-19 in Ontario – January 15, 2020 to December 15, 2020. Toronto, ON: Queen’s Printer for Ontario; 2020.
For Further Information For more information, email [email protected].
Public Health Ontario Public Health Ontario is an agency of the Government of Ontario dedicated to protecting and promoting the health of all Ontarians and reducing inequities in health. Public Health Ontario links public health practitioners, front-line health workers and researchers to the best scientific intelligence and knowledge from around the world.
For more information about PHO, visit publichealthontario.ca.
mailto:[email protected]://www.publichealthontario.ca/
Structure Bookmarks ArtifactArtifactArtifactDaily Epidemiologic Summary COVID-19 in Ontario: January 15, 2020 to December 15, 2020 This report includes the most current information available from CCM and other case management systems (CCM plus) as of December 15, 2020. PSpanPlease visit the interactive Ontario COVID-19 Data ToolOntario COVID-19 Data Tool
to explore recent COVID-19 data by public health unit, age group, sex, and trends over time.
A weekly summary report is available with additional information to complement the daily report. This daily report provides an epidemiologic summary of recent COVID-19 activity in Ontario. The change in cases is determined by taking the cumulative difference between the current day and the previous day. Highlights There are a total of 146,535 confirmed cases of COVID-19 in Ontario reported to date. There are a total of 146,535 confirmed cases of COVID-19 in Ontario reported to date. There are a total of 146,535 confirmed cases of COVID-19 in Ontario reported to date.
Compared to the previous day, this represents: Compared to the previous day, this represents:
An increase of 2,139 confirmed cases (percent change of -6.0%) An increase of 2,139 confirmed cases (percent change of -6.0%)
An increase of 43 deaths (percent change of +115.0%) An increase of 43 deaths (percent change of +115.0%)
An increase of 2,043 resolved cases (percent change of +12.9%) An increase of 2,043 resolved cases (percent change of +12.9%)
In this document, the term ‘change in cases’ refers to cases publicly reported by the province for a given day. Data corrections or updates can result in case records being removed and or updated from past reports and may result in subset totals for updated case counts (i.e., age group, gender) differing from the overall updated case counts. In this document, the term ‘change in cases’ refers to cases publicly reported by the province for a given day. Data corrections or updates can result in case records being removed and or updated from past reports and may result in subset totals for updated case counts (i.e., age group, gender) differing from the overall updated case counts. The term public health unit reported date in this document refers to the date local public health units were first notified of the case.
Case Characteristics Table 1a. Summary of recent confirmed cases of COVID-19: Ontario TableTRTHSpan
THSpanChange in cases December 14
THSpanChange in cases December 15
THSpanPercentage change December 15 compared to December 14
THSpanCumulative case count as of December 15
Span
TRTDSpanTotal number of cases
TDSpan2,275
TDSpan2,139
TDSpan-6.0%
TDSpan146,535
TRTDSpanNumber of deaths
TDSpan20
TDSpan43
TDSpan+115.0%
TDSpan4,035
TRTDSpanNumber resolved
TDSpan1,810
TDSpan2,043
TDSpan+12.9%
TDSpan125,416
Span
Note: The number of cases publicly reported by the province each day may not align with case counts reported to public health on a given day; public health unit reported date refers to the date local public health was first notified of the case. Data corrections or updates can result in case records being removed and or updated from past reports. Data Source: CCM plus Table 1b. Summary of recent confirmed cases of COVID-19 by age group and gender: Ontario TableTRTHSpan
THSpanChange in cases December 14
THSpanChange in cases December 15
THSpanCumulative case count as of December 15
Span
TRTDSpanGender: Male
TDSpan1,132
TDSpan1,067
TDSpan71,810
TRTDSpanGender: Female
TDSpan1,133
TDSpan1,044
TDSpan73,838
TRTDSpanAges: 19 and under
TDSpan341
TDSpan352
TDSpan18,563
TRTDSpanAges: 20-39
TDSpan815
TDSpan819
TDSpan53,620
TRTDSpanAges: 40-59
TDSpan672
TDSpan618
TDSpan42,004
TRTDSpanAges: 60-79
TDSpan322
TDSpan277
TDSpan21,032
TRTDSpanAges: 80 and over
TDSpan124
TDSpan74
TDSpan11,292
Span
Note: Not all cases have a reported age or gender reported. Data corrections or updates can result in case records being removed and or updated from past reports and may result in subset totals (i.e., age group, gender) differing from past publicly reported case counts. Data Source: CCM plus Table 2. Summary of recent confirmed cases of COVID-19 in school aged children by age group, August 30 to December 15, 2020: Ontario TableTRTHSpan
THSpanChange in cases December 14
THSpanChange in cases December 15
THSpanCumulative case count from August 30 to December 15
Span
TRTDSpanAges: 4 to 8
TDSpan67
TDSpan85
TDSpan2,917
TRTDSpanAges: 9 to 13
TDSpan90
TDSpan104
TDSpan4,050
TRTDSpanAges: 14 to 17
TDSpan86
TDSpan86
TDSpan3,907
Span
Note: Includes all confirmed cases of COVID-19 for specified ages, regardless of school attendance. Data corrections or updates can result in case records being removed and or updated from past reports and may result in subset totals (i.e., age group) differing from past publicly reported case counts. Data Source: CCM plus Table 3. Summary of recent confirmed cases of COVID-19 in long-term care homes: Ontario TableTRTHSpanLong-term care home cases
THSpanChange in cases December 14
THSpanChange in cases December 15
THSpanCumulative case count as of December 15
Span
TRTDSpanResidents
TDSpan20
TDSpan84
TDSpan9,462
TRTDSpanHealth care workers
TDSpan8
TDSpan31
TDSpan3,717
TRTDSpanDeaths among residents
TDSpan1
TDSpan22
TDSpan2,513
TRTDSpanDeaths among health care workers
TDSpan0
TDSpan0
TDSpan8
Span
Note: Information on how long-term care home residents and health care workers are identified is available in the technical notes. Also, the change in cases in these categories may represent existing case records that have been updated. Data Source: CCM plus Time Figure 1. Confirmed cases of COVID-19 by likely acquisition and public health unit reported date: Ontario, January 15, 2020 to December 15, 2020 FigureData Source: CCM plus Figure 2. Confirmed cases of COVID-19 by likely acquisition and approximation of symptom onset date: Ontario, January 15, 2020 to December 15, 2020 Figure Note: Not all cases may have an episode date and those without one are not included in the figure. Episode date is defined and available in the technical notes. Data Source: CCM plus Figure 3. Number of COVID-19 tests completed and percent positivity: Ontario, March 29, 2020 to December 14, 2020 Figure Note: The number of tests performed does not reflect the number of specimens or persons tested. More than one test may be performed per specimen or per person. As such, the percentage of tests that were positive does not necessarily translate to the number of specimens or persons testing positive. Data Source: The Provincial COVID-19 Diagnostics Network, data reported by member microbiology laboratories. Severity Figure 4. Confirmed deaths among COVID-19 cases by date of death: Ontario, March 1, 2020 to December 15, 2020 FigureNote: Cases without a death date are not included in the figure. Data Source: CCM plusTable 4. Confirmed cases of COVID-19 by severity: Ontario TableTRTHSpanBlank cell
THSpanCumulative case count as of December 15
THSpanPercentage of all cases
Span
TRTDSpanCumulative deaths reported (please note there may be a reporting delay for deaths)
TDSpan4,035
TDSpan2.8%
TRTDSpanDeaths reported in ages: 19 and under
TDSpan1
TDSpan0.0%
TRTDSpanDeaths reported in ages: 20-39
TDSpan15
TDSpan0.0%
TRTDSpanDeaths reported in ages: 40-59
TDSpan161
TDSpan0.4%
TRTDSpanDeaths reported in ages: 60-79
TDSpan1,054
TDSpan5.0%
TRTDSpanDeaths reported in ages: 80 and over
TDSpan2,804
TDSpan24.8%
TRTDSpanEver in ICU
TDSpan1,658
TDSpan1.1%
TRTDSpanEver hospitalized
TDSpan8,494
TDSpan5.8%
Span
Note: Not all cases have an age reported. Data corrections or updates can result in case records being removed and/or updated and may result in totals differing from past publicly reported case counts. Data Source: CCM plus Geography Table 5. Summary of recent confirmed cases of COVID-19 by public health unit and region: Ontario TableTRTHSpanPublic Health Unit Name
THSpanChange in cases December 14
THSpanChange in cases December 15
THSpanCumulative case count
THSpanCumulative rate per 100,000 population
Span
TRTDSpanNorthwestern Health Unit
TDSpan1
TDSpan1
TDSpan136
TDSpan155.1
TRTDSpanThunder Bay District Health Unit
TDSpan3
TDSpan11
TDSpan449
TDSpan299.4
TRTDSpanTOTAL NORTH WEST
TDSpan4
TDSpan12
TDSpan585
TDSpan246.2
TRTDSpanAlgoma Public Health
TDSpan0
TDSpan0
TDSpan62
TDSpan54.2
TRTDSpanNorth Bay Parry Sound District Health Unit
TDSpan2
TDSpan2
TDSpan96
TDSpan74.9
TRTDSpanPorcupine Health Unit
TDSpan1
TDSpan0
TDSpan118
TDSpan141.4
TRTDSpanPublic Health Sudbury & Districts
TDSpan4
TDSpan-2
TDSpan244
TDSpan122.6
TRTDSpanTimiskaming Health Unit
TDSpan1
TDSpan0
TDSpan28
TDSpan85.7
TRTDSpanTOTAL NORTH EAST
TDSpan8
TDSpan0
TDSpan548
TDSpan98.0
TRTDSpanOttawa Public Health
TDSpan-9
TDSpan36
TDSpan9,138
TDSpan866.4
TRTDSpanEastern Ontario Health Unit
TDSpan11
TDSpan10
TDSpan1,119
TDSpan536.1
TRTDSpanHastings Prince Edward Public Health
TDSpan4
TDSpan7
TDSpan231
TDSpan137.1
TRTDSpanKingston, Frontenac and Lennox & Addington Public Health
TDSpan5
TDSpan15
TDSpan409
TDSpan192.3
TRTDSpanLeeds, Grenville & Lanark District Health Unit
TDSpan3
TDSpan4
TDSpan604
TDSpan348.8
TRTDSpanRenfrew County and District Health Unit
TDSpan2
TDSpan0
TDSpan203
TDSpan186.9
TRTDSpanTOTAL EASTERN
TDSpan16
TDSpan72
TDSpan11,704
TDSpan607.6
Span
TableTRTHSpanPublic Health Unit Name
THSpanChange in cases December 14
THSpanChange in cases December 15
THSpanCumulative case count
THSpanCumulative rate per 100,000 population
Span
TRTDSpanDurham Region Health Department
TDSpan92
TDSpan143
TDSpan5,832
TDSpan818.6
TRTDSpanHaliburton, Kawartha, Pine Ridge District Health Unit
TDSpan8
TDSpan3
TDSpan418
TDSpan221.2
TRTDSpanPeel Public Health
TDSpan586
TDSpan528
TDSpan32,756
TDSpan2,039.7
TRTDSpanPeterborough Public Health
TDSpan1
TDSpan3
TDSpan250
TDSpan168.9
TRTDSpanSimcoe Muskoka District Health Unit
TDSpan55
TDSpan46
TDSpan2,778
TDSpan463.3
TRTDSpanYork Region Public Health
TDSpan154
TDSpan148
TDSpan13,658
TDSpan1,114.2
TRTDSpanTOTAL CENTRAL EAST
TDSpan896
TDSpan871
TDSpan55,692
TDSpan1,242.9
TRTDSpanToronto Public Health
TDSpan711
TDSpan780
TDSpan48,651
TDSpan1,559.1
TRTDSpanTOTAL TORONTO
TDSpan711
TDSpan780
TDSpan48,651
TDSpan1,559.1
TRTDSpanChatham-Kent Public Health
TDSpan8
TDSpan4
TDSpan557
TDSpan523.9
TRTDSpanGrey Bruce Health Unit
TDSpan2
TDSpan0
TDSpan381
TDSpan224.3
TRTDSpanHuron Perth Public Health
TDSpan12
TDSpan13
TDSpan485
TDSpan347.0
TRTDSpanLambton Public Health
TDSpan5
TDSpan0
TDSpan455
TDSpan347.4
TRTDSpanMiddlesex-London Health Unit
TDSpan31
TDSpan12
TDSpan2,142
TDSpan422.0
TRTDSpanSouthwestern Public Health
TDSpan21
TDSpan11
TDSpan791
TDSpan374.0
TRTDSpanWindsor-Essex County Health Unit
TDSpan185
TDSpan111
TDSpan4,985
TDSpan1,173.4
TRTDSpanTOTAL SOUTH WEST
TDSpan264
TDSpan151
TDSpan9,796
TDSpan579.4
TRTDSpanBrant County Health Unit
TDSpan28
TDSpan7
TDSpan762
TDSpan491.0
TRTDSpanCity of Hamilton Public Health Services
TDSpan99
TDSpan47
TDSpan4,406
TDSpan744.1
Span
TableTRTHSpanPublic Health Unit Name
THSpanChange in cases December 14
THSpanChange in cases December 15
THSpanCumulative case count
THSpanCumulative rate per 100,000 population
Span
TRTDSpanHaldimand-Norfolk Health Unit
TDSpan11
TDSpan8
TDSpan729
TDSpan639.0
TRTDSpanHalton Region Public Health
TDSpan65
TDSpan55
TDSpan4,430
TDSpan715.6
TRTDSpanNiagara Region Public Health
TDSpan65
TDSpan51
TDSpan2,707
TDSpan572.9
TRTDSpanRegion of Waterloo Public Health and Emergency Services
TDSpan71
TDSpan52
TDSpan4,616
TDSpan789.9
TRTDSpanWellington-Dufferin-Guelph Public Health
TDSpan37
TDSpan33
TDSpan1,909
TDSpan612.0
TRTDSpanTOTAL CENTRAL WEST
TDSpan376
TDSpan253
TDSpan19,559
TDSpan686.5
TRTDSpanTOTAL ONTARIO
TDSpan2,275
TDSpan2,139
TDSpan146,535
TDSpan985.8
Span
Notes: Health units with data corrections or updates could result in records being removed from totals resulting in negative counts. Data Source: CCM plus Outbreaks Table 6. Summary of recent confirmed COVID-19 outbreaks reported in long-term care homes, retirement homes and hospitals by status: Ontario TableTRTHSpanInstitution type
THSpanChange in outbreaks December 14
THSpanChange in outbreaks December 15
THSpanNumber of ongoing outbreaks
THSpanCumulative number of outbreaks reported
Span
TRTDSpanLong-term care homes
TDSpan1
TDSpan10
TDSpan143
TDSpan800
TRTDSpanRetirement homes
TDSpan3
TDSpan7
TDSpan84
TDSpan414
TRTDSpanHospitals
TDSpan2
TDSpan2
TDSpan44
TDSpan201
Span
Note: Ongoing outbreaks includes all outbreaks that are ‘Open’ in CCM plus without a ‘Declared Over Date’ recorded. Data Source: CCM plus Technical Notes Data Sources The data for this report were based on: The data for this report were based on: The data for this report were based on:
Information extracted from the Ontario Ministry of Health (Ministry) integrated Public Health Information System (iPHIS) database for Toronto Public Health as of December 15, 2020 at 3 p.m. Information extracted from the Ontario Ministry of Health (Ministry) integrated Public Health Information System (iPHIS) database for Toronto Public Health as of December 15, 2020 at 3 p.m.
Information successfully uploaded to the Ministry from Local Systems: Toronto Public Health (Coronavirus Rapid Entry System) CORES as of December 15, 2020 at 2 p.m. Information successfully uploaded to the Ministry from Local Systems: Toronto Public Health (Coronavirus Rapid Entry System) CORES as of December 15, 2020 at 2 p.m.
Information successfully extracted from the Public Health Case and Contact Management Solution (CCM) for all other PHUs by PHO as of December 15, 2020 at 1 p.m. Information successfully extracted from the Public Health Case and Contact Management Solution (CCM) for all other PHUs by PHO as of December 15, 2020 at 1 p.m.
CCM and CCM plus (which includes CCM, iPHIS, and CORES) are dynamic disease reporting systems, which allow ongoing updates to data previously entered. As a result, data extracted from CCM and the Local Systems represent a snapshot at the time of extraction and may differ from previous or subsequent reports. CCM and CCM plus (which includes CCM, iPHIS, and CORES) are dynamic disease reporting systems, which allow ongoing updates to data previously entered. As a result, data extracted from CCM and the Local Systems represent a snapshot at the time of extraction and may differ from previous or subsequent reports.
Ontario population projection data for 2020 were sourced from Ministry, IntelliHEALTH Ontario. Data were extracted on November 26, 2019. Ontario population projection data for 2020 were sourced from Ministry, IntelliHEALTH Ontario. Data were extracted on November 26, 2019.
COVID-19 test data were based on information from The Provincial COVID-19 Diagnostics Network, reported by member microbiology laboratories. COVID-19 test data were based on information from The Provincial COVID-19 Diagnostics Network, reported by member microbiology laboratories.
Data Caveats The data only represent cases reported to public health units and recorded in CCM plus. As a result, all counts will be subject to varying degrees of underreporting due to a variety of factors, such as disease awareness and medical care seeking behaviours, which may depend on severity of illness, clinical practice, changes in laboratory testing, and reporting behaviours. The data only represent cases reported to public health units and recorded in CCM plus. As a result, all counts will be subject to varying degrees of underreporting due to a variety of factors, such as disease awareness and medical care seeking behaviours, which may depend on severity of illness, clinical practice, changes in laboratory testing, and reporting behaviours. The data only represent cases reported to public health units and recorded in CCM plus. As a result, all counts will be subject to varying degrees of underreporting due to a variety of factors, such as disease awareness and medical care seeking behaviours, which may depend on severity of illness, clinical practice, changes in laboratory testing, and reporting behaviours.
Lags in CCM plus data entry due to weekend staffing may result in lower case counts than would otherwise be recorded. Lags in CCM plus data entry due to weekend staffing may result in lower case counts than would otherwise be recorded.
Only cases meeting the confirmed case classification as listed in the MOH Only cases meeting the confirmed case classification as listed in the MOH Only cases meeting the confirmed case classification as listed in the MOH COVID-19 case definitionCOVID-19 case definition
are included in the report counts from CCM plus. This includes persons with a positive detection of serum/plasma immunoglobulin G (IgG) antibodies to SARS-CoV-2, which was added to the confirmed case definition on August 6, 2020.
The number of tests performed does not reflect the number of specimens or persons tested. More than one test may be performed per specimen or per person. As such, the percentage of tests that were positive does not necessarily translate to the number of specimens or persons testing positive. The number of tests performed does not reflect the number of specimens or persons tested. More than one test may be performed per specimen or per person. As such, the percentage of tests that were positive does not necessarily translate to the number of specimens or persons testing positive.
Reported date is the date the case was reported to the public health unit. Reported date is the date the case was reported to the public health unit.
Case episode date is based on an estimate of the best date of disease onset. This date is calculated based on either the date of symptom onset, specimen collection/test date, or the date reported to the public health unit. Case episode date is based on an estimate of the best date of disease onset. This date is calculated based on either the date of symptom onset, specimen collection/test date, or the date reported to the public health unit. Case episode date is based on an estimate of the best date of disease onset. This date is calculated based on either the date of symptom onset, specimen collection/test date, or the date reported to the public health unit.
Resolved cases are determined only for COVID-19 cases that have not died. Cases that have died are considered fatal and not resolved. The following cases are classified as resolved: Resolved cases are determined only for COVID-19 cases that have not died. Cases that have died are considered fatal and not resolved. The following cases are classified as resolved:
Cases that are reported as ‘recovered’ in CCM Cases that are reported as ‘recovered’ in CCM
Cases that are not hospitalized and are 14 days past their episode date Cases that are not hospitalized and are 14 days past their episode date
Cases that are currently hospitalized (no hospital end date entered) and have a status of ‘closed’ in CCM (indicating public health unit follow-up is complete) and are 14 days past their symptom onset date or specimen collection date Cases that are currently hospitalized (no hospital end date entered) and have a status of ‘closed’ in CCM (indicating public health unit follow-up is complete) and are 14 days past their symptom onset date or specimen collection date
Hospitalization includes all cases for which a hospital admission date was reported at the time of data extraction. It includes cases that have been discharged from hospital as well as cases that are currently hospitalized. Emergency room visits are not included in the number of reported hospitalizations. Hospitalization includes all cases for which a hospital admission date was reported at the time of data extraction. It includes cases that have been discharged from hospital as well as cases that are currently hospitalized. Emergency room visits are not included in the number of reported hospitalizations.
ICU admission includes all cases for which an ICU admission date was reported at the time of data extraction. It is a subset of the count of hospitalized cases. It includes cases that have been treated or that are currently being treated in an ICU. ICU admission includes all cases for which an ICU admission date was reported at the time of data extraction. It is a subset of the count of hospitalized cases. It includes cases that have been treated or that are currently being treated in an ICU.
Orientation of case counts by geography is based on the diagnosing health unit (DHU). DHU refers to the case's public health unit of residence at the time of illness onset and not necessarily the location of exposure. Cases for which the DHU was reported as MOH (to signify a case that is not a resident of Ontario) have been excluded from the analyses. Orientation of case counts by geography is based on the diagnosing health unit (DHU). DHU refers to the case's public health unit of residence at the time of illness onset and not necessarily the location of exposure. Cases for which the DHU was reported as MOH (to signify a case that is not a resident of Ontario) have been excluded from the analyses.
Likely source of acquisition is determined by examining the epidemiologic link and epidemiologic link status fields in CCM and local systems. If no epidemiologic link is identified in those fields the risk factor fields are examined to determine whether a case travelled, was associated with a confirmed outbreak, was a contact of a case, had no known epidemiological link (sporadic community transmission) or was reported to have an unknown source/no information was reported. Some cases may have no informati Likely source of acquisition is determined by examining the epidemiologic link and epidemiologic link status fields in CCM and local systems. If no epidemiologic link is identified in those fields the risk factor fields are examined to determine whether a case travelled, was associated with a confirmed outbreak, was a contact of a case, had no known epidemiological link (sporadic community transmission) or was reported to have an unknown source/no information was reported. Some cases may have no informati
For cases with an episode date on or after April 1, 2020: Outbreak-associated > close contact of a confirmed case > travel > no known epidemiological link > information missing or unknown For cases with an episode date on or after April 1, 2020: Outbreak-associated > close contact of a confirmed case > travel > no known epidemiological link > information missing or unknown
For cases with an episode date before April 1, 2020: Travel > outbreak-associated > close contact of a confirmed case > no known epidemiological link > information missing or unknown For cases with an episode date before April 1, 2020: Travel > outbreak-associated > close contact of a confirmed case > no known epidemiological link > information missing or unknown
Deaths are determined by using the outcome field in CCM plus. Any case marked ‘Fatal’ is included in the deaths data. The CCM field Type of Death is not used to further categorize the data. Deaths are determined by using the outcome field in CCM plus. Any case marked ‘Fatal’ is included in the deaths data. The CCM field Type of Death is not used to further categorize the data.
The date of death is determined using the outcome date field for cases marked as ‘Fatal’ in the outcome field. The date of death is determined using the outcome date field for cases marked as ‘Fatal’ in the outcome field. The date of death is determined using the outcome date field for cases marked as ‘Fatal’ in the outcome field.
COVID-19 cases from CCM plus for which the Classification and/or Disposition was reported as ENTERED IN ERROR, DOES NOT MEET DEFINITION, IGNORE, DUPLICATE, or any variation on these values have been excluded. The provincial case count for COVID-19 includes cases that are counted once across all systems from which the case data are obtained. Duplicate records may exist if these records were not identified and resolved prior to data upload to the Ministry. COVID-19 cases from CCM plus for which the Classification and/or Disposition was reported as ENTERED IN ERROR, DOES NOT MEET DEFINITION, IGNORE, DUPLICATE, or any variation on these values have been excluded. The provincial case count for COVID-19 includes cases that are counted once across all systems from which the case data are obtained. Duplicate records may exist if these records were not identified and resolved prior to data upload to the Ministry.
Ongoing outbreaks are those that are reported in CCM plus as ‘Open’ without a ‘Declared Over Date’ recorded. Ongoing outbreaks are those that are reported in CCM plus as ‘Open’ without a ‘Declared Over Date’ recorded.
‘Long-term care home residents’ includes cases that reported ‘Yes’ to the risk factor ‘Resident of a long-term care home’; or ‘Yes’ to the risk factor ‘Resident of nursing home or other chronic care facility’ and reported to be part of an outbreak assigned as a long-term care home (via the Outbreak number or case comments field); or were reported to be part of an outbreak assigned as a long-term care home (via the outbreak number or case comments field) with an age over 70 years and did not report ‘No’ t ‘Long-term care home residents’ includes cases that reported ‘Yes’ to the risk factor ‘Resident of a long-term care home’; or ‘Yes’ to the risk factor ‘Resident of nursing home or other chronic care facility’ and reported to be part of an outbreak assigned as a long-term care home (via the Outbreak number or case comments field); or were reported to be part of an outbreak assigned as a long-term care home (via the outbreak number or case comments field) with an age over 70 years and did not report ‘No’ t
The ‘health care workers’ variable includes cases that reported ‘Yes’ to any of the occupation of health care worker, doctor, nurse, dentist, dental hygienist, midwife, other medical technicians, personal support worker, respiratory therapist, first responder. The ‘health care workers’ variable includes cases that reported ‘Yes’ to any of the occupation of health care worker, doctor, nurse, dentist, dental hygienist, midwife, other medical technicians, personal support worker, respiratory therapist, first responder.
‘Health care workers associated with long-term care outbreaks’ includes ‘health care workers’ reported to be part of an outbreak assigned as a long-term care home (via the outbreak number or case comments field). Excludes cases that reported ‘Yes’ to risk factors ‘Resident of long-term care home’ or ‘Resident of nursing home or other chronic care facility’ and ‘Yes’ to the calculated ‘health care workers’ variable. ‘Health care workers associated with long-term care outbreaks’ includes ‘health care workers’ reported to be part of an outbreak assigned as a long-term care home (via the outbreak number or case comments field). Excludes cases that reported ‘Yes’ to risk factors ‘Resident of long-term care home’ or ‘Resident of nursing home or other chronic care facility’ and ‘Yes’ to the calculated ‘health care workers’ variable.
Percent change is calculated by taking the difference between the current period (i.e., daily count or sum of the daily count over a 7-day period) and previous period (i.e., daily count or sum of the daily count over a 7-day period), divided by the previous period. Percent change is calculated by taking the difference between the current period (i.e., daily count or sum of the daily count over a 7-day period) and previous period (i.e., daily count or sum of the daily count over a 7-day period), divided by the previous period.
Appendix A Table A1. Weekly rates of confirmed COVID-19 cases per 100,000 population over recent rolling 7-day periods, by reported date and public health unit: Ontario, November 30, 2020 to December 12, 2020 TableTRTHSpanPublic Health Unit Name
THSpanNov 30 to Dec 6
THSpanDec 1 to Dec 7
THSpanDec 2 to Dec 8
THSpanDec 3 to Dec 9
THSpanDec 4 to Dec 10
THSpanDec 5 to Dec 11
THSpanDec 6 to Dec 12
THSpan% change from Nov 30-Dec 6 to Dec 6-12
Span
TRTDSpanNORTH WEST
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TRTDSpanNorthwestern Health Unit
TDSpan10.3
TDSpan11.4
TDSpan12.5
TDSpan13.7
TDSpan10.3
TDSpan9.1
TDSpan6.8
TDSpan-34.0%
TRTDSpanThunder Bay District Health Unit
TDSpan45.3
TDSpan42.0
TDSpan46.7
TDSpan46.0
TDSpan44.0
TDSpan45.3
TDSpan39.3
TDSpan-13.2%
TRTDSpanNORTH EAST
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TRTDSpanAlgoma Public Health
TDSpan0.9
TDSpan0.9
TDSpan0.9
TDSpan0.0
TDSpan0.9
TDSpan0.9
TDSpan0.9
TDSpan0.0%
TRTDSpanNorth Bay Parry Sound District Health Unit
TDSpan8.5
TDSpan8.5
TDSpan8.5
TDSpan5.4
TDSpan3.9
TDSpan5.4
TDSpan4.6
TDSpan-45.9%
TRTDSpanPorcupine Health Unit
TDSpan12.0
TDSpan12.0
TDSpan10.8
TDSpan7.2
TDSpan1.2
TDSpan0.0
TDSpan1.2
TDSpan-90.0%
TRTDSpanPublic Health Sudbury & Districts
TDSpan4.0
TDSpan3.5
TDSpan5.0
TDSpan5.0
TDSpan4.5
TDSpan4.5
TDSpan5.0
TDSpan+25.0%
TRTDSpanTimiskaming Health Unit
TDSpan9.2
TDSpan12.2
TDSpan18.4
TDSpan21.4
TDSpan24.5
TDSpan24.5
TDSpan21.4
TDSpan+132.6%
TRTDSpanEASTERN
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TRTDSpanOttawa Public Health
TDSpan29.6
TDSpan27.4
TDSpan29.9
TDSpan30.0
TDSpan29.1
TDSpan30.1
TDSpan30.1
TDSpan+1.7%
Span
TableTRTHSpanPublic Health Unit Name
THSpanNov 30 to Dec 6
THSpanDec 1 to Dec 7
THSpanDec 2 to Dec 8
THSpanDec 3 to Dec 9
THSpanDec 4 to Dec 10
THSpanDec 5 to Dec 11
THSpanDec 6 to Dec 12
THSpan% change from Nov 30-Dec 6 to Dec 6-12
Span
TRTDSpanEastern Ontario Health Unit
TDSpan73.3
TDSpan73.8
TDSpan67.6
TDSpan69.0
TDSpan64.7
TDSpan60.4
TDSpan64.2
TDSpan-12.4%
TRTDSpanHastings Prince Edward Public Health
TDSpan20.2
TDSpan20.2
TDSpan21.4
TDSpan24.3
TDSpan27.3
TDSpan27.9
TDSpan28.5
TDSpan+41.1%
TRTDSpanKingston, Frontenac and Lennox & Addington Public Health
TDSpan24.9
TDSpan24.4
TDSpan29.6
TDSpan32.0
TDSpan35.3
TDSpan41.4
TDSpan40.9
TDSpan+64.3%
TRTDSpanLeeds, Grenville & Lanark District Health Unit
TDSpan25.4
TDSpan27.7
TDSpan31.8
TDSpan36.4
TDSpan43.3
TDSpan41.0
TDSpan41.0
TDSpan+61.4%
TRTDSpanRenfrew County and District Health Unit
TDSpan25.8
TDSpan33.1
TDSpan33.1
TDSpan49.7
TDSpan52.5
TDSpan39.6
TDSpan42.3
TDSpan+64.0%
TRTDSpanCENTRAL EAST
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TRTDSpanDurham Region Health Department
TDSpan90.1
TDSpan89.1
TDSpan83.4
TDSpan86.9
TDSpan83.9
TDSpan88.4
TDSpan78.2
TDSpan-13.2%
TRTDSpanHaliburton, Kawartha, Pine Ridge District Health Unit
TDSpan20.1
TDSpan19.6
TDSpan16.4
TDSpan20.1
TDSpan24.3
TDSpan28.1
TDSpan31.2
TDSpan+55.2%
TRTDSpanPeel Public Health
TDSpan203.1
TDSpan205.2
TDSpan198.0
TDSpan197.5
TDSpan194.6
TDSpan193.9
TDSpan183.9
TDSpan-9.5%
Span
TableTRTHSpanPublic Health Unit Name
THSpanNov 30 to Dec 6
THSpanDec 1 to Dec 7
THSpanDec 2 to Dec 8
THSpanDec 3 to Dec 9
THSpanDec 4 to Dec 10
THSpanDec 5 to Dec 11
THSpanDec 6 to Dec 12
THSpan% change from Nov 30-Dec 6 to Dec 6-12
Span
TRTDSpanPeterborough Public Health
TDSpan9.5
TDSpan10.1
TDSpan12.2
TDSpan10.8
TDSpan10.8
TDSpan10.8
TDSpan12.2
TDSpan+28.4%
TRTDSpanSimcoe Muskoka District Health Unit
TDSpan50.5
TDSpan51.9
TDSpan56.4
TDSpan55.7
TDSpan55.4
TDSpan54.2
TDSpan53.2
TDSpan+5.3%
TRTDSpanYork Region Public Health
TDSpan109.2
TDSpan107.9
TDSpan104.2
TDSpan109.2
TDSpan110.2
TDSpan106.1
TDSpan101.6
TDSpan-7.0%
TRTDSpanTORONTO
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TRTDSpanToronto Public Health
TDSpan120.2
TDSpan121.5
TDSpan124.8
TDSpan122.9
TDSpan122.4
TDSpan120.8
TDSpan120.8
TDSpan+0.5%
TRTDSpanSOUTH WEST
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TRTDSpanChatham-Kent Public Health
TDSpan33.9
TDSpan27.3
TDSpan16.9
TDSpan21.6
TDSpan20.7
TDSpan21.6
TDSpan22.6
TDSpan-33.3%
TRTDSpanGrey Bruce Health Unit
TDSpan18.8
TDSpan15.9
TDSpan18.8
TDSpan19.4
TDSpan18.8
TDSpan18.8
TDSpan20.6
TDSpan+9.6%
TRTDSpanHuron Perth Public Health
TDSpan44.4
TDSpan45.8
TDSpan42.9
TDSpan39.4
TDSpan35.8
TDSpan44.4
TDSpan47.9
TDSpan+7.9%
TRTDSpanLambton Public Health
TDSpan15.3
TDSpan17.6
TDSpan15.3
TDSpan19.1
TDSpan19.1
TDSpan15.3
TDSpan16.0
TDSpan+4.6%
TRTDSpanMiddlesex-London Health Unit
TDSpan48.7
TDSpan45.7
TDSpan48.7
TDSpan48.3
TDSpan47.5
TDSpan50.8
TDSpan51.8
TDSpan+6.4%
TRTDSpanSouthwestern Public Health
TDSpan40.7
TDSpan43.0
TDSpan37.4
TDSpan42.6
TDSpan47.8
TDSpan48.7
TDSpan55.8
TDSpan+37.1%
TRTDSpanWindsor-Essex County Health Unit
TDSpan97.5
TDSpan106.6
TDSpan124.0
TDSpan132.8
TDSpan136.3
TDSpan144.1
TDSpan147.8
TDSpan+51.6%
Span
TableTRTHSpanPublic Health Unit Name
THSpanNov 30 to Dec 6
THSpanDec 1 to Dec 7
THSpanDec 2 to Dec 8
THSpanDec 3 to Dec 9
THSpanDec 4 to Dec 10
THSpanDec 5 to Dec 11
THSpanDec 6 to Dec 12
THSpan% change from Nov 30-Dec 6 to Dec 6-12
Span
TRTDSpanCENTRAL WEST
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TRTDSpanBrant County Health Unit
TDSpan30.3
TDSpan31.6
TDSpan33.5
TDSpan37.4
TDSpan41.9
TDSpan46.4
TDSpan54.8
TDSpan+80.9%
TRTDSpanCity of Hamilton Public Health Services
TDSpan78.4
TDSpan84.8
TDSpan86.1
TDSpan88.0
TDSpan92.2
TDSpan93.4
TDSpan103.2
TDSpan+31.6%
TRTDSpanHaldimand-Norfolk Health Unit
TDSpan23.7
TDSpan25.4
TDSpan32.4
TDSpan36.8
TDSpan45.6
TDSpan46.5
TDSpan46.5
TDSpan+96.2%
TRTDSpanHalton Region Public Health
TDSpan64.4
TDSpan70.7
TDSpan69.6
TDSpan71.1
TDSpan67.8
TDSpan70.6
TDSpan68.6
TDSpan+6.5%
TRTDSpanNiagara Region Public Health
TDSpan35.8
TDSpan36.2
TDSpan39.2
TDSpan40.4
TDSpan48.9
TDSpan55.0
TDSpan60.1
TDSpan+67.9%
TRTDSpanRegion of Waterloo Public Health and Emergency Services
TDSpan77.5
TDSpan75.3
TDSpan69.1
TDSpan68.1
TDSpan72.6
TDSpan77.7
TDSpan76.8
TDSpan-0.9%
TRTDSpanWellington-Dufferin-Guelph Public Health
TDSpan67.3
TDSpan69.9
TDSpan77.3
TDSpan85.6
TDSpan81.8
TDSpan80.5
TDSpan87.5
TDSpan+30.0%
TRTDSpanTOTAL ONTARIO
TDSpan85.8
TDSpan86.7
TDSpan87.0
TDSpan88.1
TDSpan88.3
TDSpan88.7
TDSpan87.8
TDSpan+2.3%
Span
Note: Rates are based on the sum of the daily case counts during the date ranges specified in each column. Data Source: CCM plus Disclaimer This document was developed by Public Health Ontario (PHO). PHO provides scientific and technical advice to Ontario’s government, public health organizations and health care providers. PHO’s work is guided by the current best available evidence at the time of publication. The application and use of this document is the responsibility of the user. PHO assumes no liability resulting from any such application or use. This document may be reproduced without permission for non-commercial purposes only and provided that appropriate credit is given to PHO. No changes and/or modifications may be made to this document without express written permission from PHO. Citation Ontario Agency for Health Protection and Promotion (Public Health Ontario). Epidemiologic summary: COVID-19 in Ontario – January 15, 2020 to December 15, 2020. Toronto, ON: Queen’s Printer for Ontario; 2020. For Further Information For more information, email For more information, email [email protected]@oahpp.ca
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Public Health Ontario Public Health Ontario is an agency of the Government of Ontario dedicated to protecting and promoting the health of all Ontarians and reducing inequities in health. Public Health Ontario links public health practitioners, front-line health workers and researchers to the best scientific intelligence and knowledge from around the world. For more information about PHO, visit For more information about PHO, visit publichealthontario.capublichealthontario.ca
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Figure