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COVID-19 in Ontario: January 15, 2020 to December 28, 2020 1
Daily Epidemiologic Summary
COVID-19 in Ontario: January 15, 2020 to December 28, 2020
This report includes the most current information available from CCM and other case management systems (CCM plus) as of December 28, 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 175,908 confirmed cases of COVID-19 in Ontario reported to date.
Compared to the previous day, this represents:
An increase of 2,553 confirmed cases (percent change of +31.7%)
An increase of 41 deaths (percent change of +10.8%)
An increase of 2,233 resolved cases (percent change of +3.8%)
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
COVID-19 in Ontario: January 15, 2020 to December 28, 2020 2
Case Characteristics
Table 1a. Summary of recent confirmed cases of COVID-19: Ontario
Change in cases
December 27
Change in cases
December 28
Percentage change
December 28 compared to December 27
Cumulative case count
as of December 28
Total number of cases 1,939 2,553 +31.7% 175,908
Number of deaths 37 41 +10.8% 4,455
Number resolved 2,151 2,233 +3.8% 151,562
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
COVID-19 in Ontario: January 15, 2020 to December 28, 2020 3
Table 1b. Summary of recent confirmed cases of COVID-19 by age group and gender: Ontario
Change in cases
December 27
Change in cases
December 28
Cumulative case count
as of December 28
Gender: Male 917 1,242 86,163
Gender: Female 1,008 1,308 88,643
Ages: 19 and under 281 341 22,711
Ages: 20-39 691 855 64,094
Ages: 40-59 571 778 50,569
Ages: 60-79 271 423 25,360
Ages: 80 and over 131 154 13,134
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 28, 2020: Ontario
Change in cases
December 27
Change in cases
December 28
Cumulative case count from August 30 to
December 28
Ages: 4 to 8 45 48 3,645
Ages: 9 to 13 62 89 5,084
Ages: 14 to 17 75 98 4,980
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
COVID-19 in Ontario: January 15, 2020 to December 28, 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 27
Change in cases
December 28
Cumulative case count as of December 28
Residents 70 78 10,725
Health care workers 35 33 4,228
Deaths among residents 12 18 2,726
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
COVID-19 in Ontario: January 15, 2020 to December 28, 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 28, 2020
Data Source: CCM plus
COVID-19 in Ontario: January 15, 2020 to December 28, 2020 6
Figure 2. Confirmed cases of COVID-19 by likely acquisition and approximation of symptom onset date: Ontario, January 15, 2020 to December 28, 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
COVID-19 in Ontario: January 15, 2020 to December 28, 2020 7
Figure 3. Number of COVID-19 tests completed and percent positivity: Ontario, March 29, 2020 to December 27, 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.
COVID-19 in Ontario: January 15, 2020 to December 28, 2020 8
Severity Figure 4. Confirmed deaths among COVID-19 cases by date of death: Ontario, March 1, 2020 to December 28, 2020
Note: Cases without a death date are not included in the figure.
Data Source: CCM plus
COVID-19 in Ontario: January 15, 2020 to December 28, 2020 9
Table 4. Confirmed cases of COVID-19 by severity: Ontario
Blank cell Cumulative case count
as of December 28 Percentage of all
cases
Cumulative deaths reported (please note there may be a reporting delay for deaths)
4,455 2.5%
Deaths reported in ages: 19 and under 1 < 0.1%
Deaths reported in ages: 20-39 19 < 0.1%
Deaths reported in ages: 40-59 175 0.3%
Deaths reported in ages: 60-79 1,182 4.7%
Deaths reported in ages: 80 and over 3,077 23.4%
Ever in ICU N/A N/A
Ever hospitalized N/A N/A
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
Data for hospitalizations and ICU are unavailable at this time due to a reporting error.
COVID-19 in Ontario: January 15, 2020 to December 28, 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 27
Change in cases
December 28
Cumulative case count
Cumulative rate per 100,000 population
Northwestern Health Unit 3 1 162 184.8
Thunder Bay District Health Unit 3 9 574 382.8
TOTAL NORTH WEST 6 10 736 309.7
Algoma Public Health 0 0 65 56.8
North Bay Parry Sound District Health Unit
-4 0 120 92.5
Porcupine Health Unit 0 1 128 153.4
Public Health Sudbury & Districts -2 1 264 132.6
Timiskaming Health Unit 3 1 65 198.8
TOTAL NORTH EAST -3 3 642 114.8
Ottawa Public Health 41 65 9,805 929.7
Eastern Ontario Health Unit 13 16 1,320 632.5
Hastings Prince Edward Public Health
6 -1 266 157.9
Kingston, Frontenac and Lennox & Addington Public Health
9 3 517 243.0
Leeds, Grenville & Lanark District Health Unit
1 5 655 378.2
Renfrew County and District Health Unit
0 0 228 209.9
TOTAL EASTERN 70 88 12,791 664.0
COVID-19 in Ontario: January 15, 2020 to December 28, 2020 11
Public Health Unit Name Change in
cases December 27
Change in cases
December 28
Cumulative case count
Cumulative rate per 100,000 population
Durham Region Health Department 59 108 6,983 980.2
Haliburton, Kawartha, Pine Ridge District Health Unit
5 1 499 264.1
Peel Public Health 475 496 38,432 2,393.1
Peterborough Public Health 9 0 320 216.2
Simcoe Muskoka District Health Unit
56 34 3,440 573.7
York Region Public Health 158 142 16,508 1,346.7
TOTAL CENTRAL EAST 762 781 66,182 1,477.1
Toronto Public Health 412 895 56,788 1,819.9
TOTAL TORONTO 412 895 56,788 1,819.9
Chatham-Kent Public Health 9 19 652 613.3
Grey Bruce Health Unit 1 3 443 260.8
Huron Perth Public Health 6 8 645 461.5
Lambton Public Health 35 16 684 522.3
Middlesex-London Health Unit 108 86 3,045 600.0
Southwestern Public Health 32 25 1,183 559.3
Windsor-Essex County Health Unit 178 147 7,151 1,683.3
TOTAL SOUTH WEST 369 304 13,803 816.4
Brant County Health Unit 16 11 927 597.3
City of Hamilton Public Health Services
100 144 5,793 978.3
COVID-19 in Ontario: January 15, 2020 to December 28, 2020 12
Public Health Unit Name Change in
cases December 27
Change in cases
December 28
Cumulative case count
Cumulative rate per 100,000 population
Haldimand-Norfolk Health Unit 7 10 858 752.1
Halton Region Public Health 67 78 5,457 881.5
Niagara Region Public Health 53 115 3,745 792.6
Region of Waterloo Public Health and Emergency Services
45 57 5,671 970.5
Wellington-Dufferin-Guelph Public Health
35 57 2,515 806.3
TOTAL CENTRAL WEST 323 472 24,966 876.2
TOTAL ONTARIO 1,939 2,553 175,908 1,183.4
Notes: Health units with data corrections or updates could result in records being removed from totals resulting in negative counts.
Data Source: CCM plus
COVID-19 in Ontario: January 15, 2020 to December 28, 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 27
Change in outbreaks
December 28
Number of ongoing
outbreaks
Cumulative number of outbreaks reported
Long-term care homes 11 5 199 903
Retirement homes 9 5 106 471
Hospitals 1 0 52 234
Note: Ongoing outbreaks include all outbreaks that are ‘Open’ in CCM plus without a ‘Declared Over Date’ recorded, or where the outbreak started more than five months ago, even for outbreaks where the Outbreak Status value selected in CCM/iPHIS is 'OPEN'. The start of the outbreak is determined by the onset date of first case, or if missing the outbreak reported date, or else if that is also missing, then the outbreak created date.
Data Source: CCM plus
COVID-19 in Ontario: January 15, 2020 to December 28, 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 28, 2020 at 1 p.m.
Information successfully uploaded to the Ministry from Local Systems: Toronto Public Health (Coronavirus Rapid Entry System) CORES as of December 28, 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 28, 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
COVID-19 in Ontario: January 15, 2020 to December 28, 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.
COVID-19 in Ontario: January 15, 2020 to December 28, 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 include all outbreaks that are ‘Open’ in CCM plus without a ‘Declared Over Date’ recorded, or where the outbreak started more than five months ago, even for outbreaks where the Outbreak Status value selected in CCM/iPHIS is 'OPEN'. The start of the outbreak is determined by the onset date of first case, or if missing the outbreak reported date, or else if that is also missing, then the outbreak created date.
‘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.
COVID-19 in Ontario: January 15, 2020 to December 28, 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, December 13, 2020 to December 25, 2020
Public Health Unit Name
Dec 13 to
Dec 19
Dec 14 to
Dec 20
Dec 15 to
Dec 21
Dec 16 to
Dec 22
Dec 17 to
Dec 23
Dec 18 to
Dec 24
Dec 19 to
Dec 25
% change from
Dec 13-19 to Dec 19-
25
NORTH WEST
Northwestern Health Unit
5.7 5.7 10.3 11.4 11.4 19.4 19.4 +240.4%
Thunder Bay District Health Unit
44.7 44.0 48.7 58.0 58.0 50.7 46.7 +4.5%
NORTH EAST
Algoma Public Health
0.0 0.0 0.0 0.9 1.7 1.7 1.7 N/A
North Bay Parry Sound District Health Unit
12.3 12.3 12.3 13.1 10.8 12.3 9.2 -25.2%
Porcupine Health Unit
4.8 3.6 8.4 10.8 10.8 9.6 9.6 +100.0%
Public Health Sudbury & Districts
4.0 4.0 5.0 5.5 6.0 5.5 6.5 +62.5%
Timiskaming Health Unit
33.7 36.7 45.9 55.1 61.2 70.4 79.5 +135.9%
EASTERN
Ottawa Public Health
27.0 26.6 27.2 30.2 29.6 31.6 36.7 +35.9%
COVID-19 in Ontario: January 15, 2020 to December 28, 2020 18
Public Health Unit Name
Dec 13 to
Dec 19
Dec 14 to
Dec 20
Dec 15 to
Dec 21
Dec 16 to
Dec 22
Dec 17 to
Dec 23
Dec 18 to
Dec 24
Dec 19 to
Dec 25
% change from
Dec 13-19 to Dec 19-
25
Eastern Ontario Health Unit
45.5 41.7 41.7 46.5 49.4 53.2 50.8 +11.6%
Hastings Prince Edward Public Health
14.8 16.6 14.8 15.4 16.6 14.8 11.3 -23.6%
Kingston, Frontenac and Lennox & Addington Public Health
35.7 35.7 32.4 28.7 27.3 27.3 22.1 -38.1%
Leeds, Grenville & Lanark District Health Unit
21.4 20.8 19.6 17.9 13.9 12.1 9.8 -54.2%
Renfrew County and District Health Unit
15.6 13.8 16.6 16.6 13.8 10.1 12.9 -17.3%
CENTRAL EAST
Durham Region Health Department
88.9 93.2 96.9 96.7 96.4 92.1 89.1 +0.2%
Haliburton, Kawartha, Pine Ridge District Health Unit
24.3 23.8 24.9 23.8 25.4 26.5 25.4 +4.5%
Peel Public Health
201.3 208.6 195.1 190.9 194.2 190.4 182.0 -9.6%
COVID-19 in Ontario: January 15, 2020 to December 28, 2020 19
Public Health Unit Name
Dec 13 to
Dec 19
Dec 14 to
Dec 20
Dec 15 to
Dec 21
Dec 16 to
Dec 22
Dec 17 to
Dec 23
Dec 18 to
Dec 24
Dec 19 to
Dec 25
% change from
Dec 13-19 to Dec 19-
25
Peterborough Public Health
16.2 16.2 19.6 20.3 20.3 22.3 31.8 +96.3%
Simcoe Muskoka District Health Unit
59.5 60.9 62.4 63.4 59.5 57.7 57.2 -3.9%
York Region Public Health
120.7 119.4 124.2 128.1 129.5 130.5 129.2 +7.0%
TORONTO
Toronto Public Health
147.1 149.9 145.3 149.9 145.3 141.2 141.6 -3.7%
SOUTH WEST
Chatham-Kent Public Health
32.9 32.0 35.7 41.4 38.6 36.7 46.1 +40.1%
Grey Bruce Health Unit
17.7 17.1 18.8 21.2 23.0 21.2 21.8 +23.2%
Huron Perth Public Health
51.5 54.4 58.7 52.2 50.8 61.5 63.7 +23.7%
Lambton Public Health
55.7 57.3 64.9 82.5 77.1 77.1 83.2 +49.4%
Middlesex-London Health Unit
76.3 83.7 88.9 100.3 99.1 92.8 87.9 +15.2%
Southwestern Public Health
78.0 77.1 95.0 103.5 96.5 96.5 104.0 +33.3%
Windsor-Essex County Health Unit
268.8 275.4 286.5 289.1 274.2 253.7 262.2 -2.5%
COVID-19 in Ontario: January 15, 2020 to December 28, 2020 20
Public Health Unit Name
Dec 13 to
Dec 19
Dec 14 to
Dec 20
Dec 15 to
Dec 21
Dec 16 to
Dec 22
Dec 17 to
Dec 23
Dec 18 to
Dec 24
Dec 19 to
Dec 25
% change from
Dec 13-19 to Dec 19-
25
CENTRAL WEST
Brant County Health Unit
70.9 60.6 60.6 62.5 63.1 51.5 49.6 -30.0%
City of Hamilton Public Health Services
121.4 119.6 121.6 126.0 123.1 108.4 109.1 -10.1%
Haldimand-Norfolk Health Unit
59.6 59.6 62.2 61.4 70.1 75.4 72.8 +22.1%
Halton Region Public Health
84.0 85.6 86.9 84.6 83.3 87.9 83.7 -0.4%
Niagara Region Public Health
107.5 109.4 112.6 118.5 125.1 131.9 114.3 +6.3%
Region of Waterloo Public Health and Emergency Services
98.2 98.7 106.1 106.4 110.7 109.2 104.2 +6.1%
Wellington-Dufferin-Guelph Public Health
93.9 91.7 95.9 96.8 103.2 105.5 93.9 0.0%
TOTAL ONTARIO
105.7 107.5 107.4 109.7 108.7 106.4 104.7 -0.9%
Note: Rates are based on the sum of the daily case counts during the date ranges specified in each column.
Data Source: CCM plus
COVID-19 in Ontario: January 15, 2020 to December 28, 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 28, 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 28, 2020 This report includes the most current information available from CCM and other case management systems (CCM plus) as of December 28, 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 175,908 confirmed cases of COVID-19 in Ontario reported to date. There are a total of 175,908 confirmed cases of COVID-19 in Ontario reported to date. There are a total of 175,908 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 2,553 confirmed cases (percent change of +31.7%) An increase of 2,553 confirmed cases (percent change of +31.7%)
An increase of 41 deaths (percent change of +10.8%) An increase of 41 deaths (percent change of +10.8%)
An increase of 2,233 resolved cases (percent change of +3.8%) An increase of 2,233 resolved cases (percent change of +3.8%)
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 27
THSpanChange in cases December 28
THSpanPercentage change December 28 compared to December 27
THSpanCumulative case count as of December 28
Span
TRTDSpanTotal number of cases
TDSpan1,939
TDSpan2,553
TDSpan+31.7%
TDSpan175,908
TRTDSpanNumber of deaths
TDSpan37
TDSpan41
TDSpan+10.8%
TDSpan4,455
TRTDSpanNumber resolved
TDSpan2,151
TDSpan2,233
TDSpan+3.8%
TDSpan151,562
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 27
THSpanChange in cases December 28
THSpanCumulative case count as of December 28
Span
TRTDSpanGender: Male
TDSpan917
TDSpan1,242
TDSpan86,163
TRTDSpanGender: Female
TDSpan1,008
TDSpan1,308
TDSpan88,643
TRTDSpanAges: 19 and under
TDSpan281
TDSpan341
TDSpan22,711
TRTDSpanAges: 20-39
TDSpan691
TDSpan855
TDSpan64,094
TRTDSpanAges: 40-59
TDSpan571
TDSpan778
TDSpan50,569
TRTDSpanAges: 60-79
TDSpan271
TDSpan423
TDSpan25,360
TRTDSpanAges: 80 and over
TDSpan131
TDSpan154
TDSpan13,134
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 28, 2020: Ontario TableTRTHSpan
THSpanChange in cases December 27
THSpanChange in cases December 28
THSpanCumulative case count from August 30 to December 28
Span
TRTDSpanAges: 4 to 8
TDSpan45
TDSpan48
TDSpan3,645
TRTDSpanAges: 9 to 13
TDSpan62
TDSpan89
TDSpan5,084
TRTDSpanAges: 14 to 17
TDSpan75
TDSpan98
TDSpan4,980
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 27
THSpanChange in cases December 28
THSpanCumulative case count as of December 28
Span
TRTDSpanResidents
TDSpan70
TDSpan78
TDSpan10,725
TRTDSpanHealth care workers
TDSpan35
TDSpan33
TDSpan4,228
TRTDSpanDeaths among residents
TDSpan12
TDSpan18
TDSpan2,726
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 28, 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 28, 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 27, 2020 FigureNote: 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 28, 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 28
THSpanPercentage of all cases
Span
TRTDSpanCumulative deaths reported (please note there may be a reporting delay for deaths)
TDSpan4,455
TDSpan2.5%
TRTDSpanDeaths reported in ages: 19 and under
TDSpan1
TDSpan< 0.1%
TRTDSpanDeaths reported in ages: 20-39
TDSpan19
TDSpan< 0.1%
TRTDSpanDeaths reported in ages: 40-59
TDSpan175
TDSpan0.3%
TRTDSpanDeaths reported in ages: 60-79
TDSpan1,182
TDSpan4.7%
TRTDSpanDeaths reported in ages: 80 and over
TDSpan3,077
TDSpan23.4%
TRTDSpanEver in ICU
TDSpanN/A
TDSpanN/A
TRTDSpanEver hospitalized
TDSpanN/A
TDSpanN/A
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 Data for hospitalizations and ICU are unavailable at this time due to a reporting error. 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 27
THSpanChange in cases December 28
THSpanCumulative case count
THSpanCumulative rate per 100,000 population
Span
TRTDSpanNorthwestern Health Unit
TDSpan3
TDSpan1
TDSpan162
TDSpan184.8
TRTDSpanThunder Bay District Health Unit
TDSpan3
TDSpan9
TDSpan574
TDSpan382.8
TRTDSpanTOTAL NORTH WEST
TDSpan6
TDSpan10
TDSpan736
TDSpan309.7
TRTDSpanAlgoma Public Health
TDSpan0
TDSpan0
TDSpan65
TDSpan56.8
TRTDSpanNorth Bay Parry Sound District Health Unit
TDSpan-4
TDSpan0
TDSpan120
TDSpan92.5
TRTDSpanPorcupine Health Unit
TDSpan0
TDSpan1
TDSpan128
TDSpan153.4
TRTDSpanPublic Health Sudbury & Districts
TDSpan-2
TDSpan1
TDSpan264
TDSpan132.6
TRTDSpanTimiskaming Health Unit
TDSpan3
TDSpan1
TDSpan65
TDSpan198.8
TRTDSpanTOTAL NORTH EAST
TDSpan-3
TDSpan3
TDSpan642
TDSpan114.8
TRTDSpanOttawa Public Health
TDSpan41
TDSpan65
TDSpan9,805
TDSpan929.7
TRTDSpanEastern Ontario Health Unit
TDSpan13
TDSpan16
TDSpan1,320
TDSpan632.5
TRTDSpanHastings Prince Edward Public Health
TDSpan6
TDSpan-1
TDSpan266
TDSpan157.9
TRTDSpanKingston, Frontenac and Lennox & Addington Public Health
TDSpan9
TDSpan3
TDSpan517
TDSpan243.0
TRTDSpanLeeds, Grenville & Lanark District Health Unit
TDSpan1
TDSpan5
TDSpan655
TDSpan378.2
TRTDSpanRenfrew County and District Health Unit
TDSpan0
TDSpan0
TDSpan228
TDSpan209.9
TRTDSpanTOTAL EASTERN
TDSpan70
TDSpan88
TDSpan12,791
TDSpan664.0
Span
TableTRTHSpanPublic Health Unit Name
THSpanChange in cases December 27
THSpanChange in cases December 28
THSpanCumulative case count
THSpanCumulative rate per 100,000 population
Span
TRTDSpanDurham Region Health Department
TDSpan59
TDSpan108
TDSpan6,983
TDSpan980.2
TRTDSpanHaliburton, Kawartha, Pine Ridge District Health Unit
TDSpan5
TDSpan1
TDSpan499
TDSpan264.1
TRTDSpanPeel Public Health
TDSpan475
TDSpan496
TDSpan38,432
TDSpan2,393.1
TRTDSpanPeterborough Public Health
TDSpan9
TDSpan0
TDSpan320
TDSpan216.2
TRTDSpanSimcoe Muskoka District Health Unit
TDSpan56
TDSpan34
TDSpan3,440
TDSpan573.7
TRTDSpanYork Region Public Health
TDSpan158
TDSpan142
TDSpan16,508
TDSpan1,346.7
TRTDSpanTOTAL CENTRAL EAST
TDSpan762
TDSpan781
TDSpan66,182
TDSpan1,477.1
TRTDSpanToronto Public Health
TDSpan412
TDSpan895
TDSpan56,788
TDSpan1,819.9
TRTDSpanTOTAL TORONTO
TDSpan412
TDSpan895
TDSpan56,788
TDSpan1,819.9
TRTDSpanChatham-Kent Public Health
TDSpan9
TDSpan19
TDSpan652
TDSpan613.3
TRTDSpanGrey Bruce Health Unit
TDSpan1
TDSpan3
TDSpan443
TDSpan260.8
TRTDSpanHuron Perth Public Health
TDSpan6
TDSpan8
TDSpan645
TDSpan461.5
TRTDSpanLambton Public Health
TDSpan35
TDSpan16
TDSpan684
TDSpan522.3
TRTDSpanMiddlesex-London Health Unit
TDSpan108
TDSpan86
TDSpan3,045
TDSpan600.0
TRTDSpanSouthwestern Public Health
TDSpan32
TDSpan25
TDSpan1,183
TDSpan559.3
TRTDSpanWindsor-Essex County Health Unit
TDSpan178
TDSpan147
TDSpan7,151
TDSpan1,683.3
TRTDSpanTOTAL SOUTH WEST
TDSpan369
TDSpan304
TDSpan13,803
TDSpan816.4
TRTDSpanBrant County Health Unit
TDSpan16
TDSpan11
TDSpan927
TDSpan597.3
TRTDSpanCity of Hamilton Public Health Services
TDSpan100
TDSpan144
TDSpan5,793
TDSpan978.3
Span
TableTRTHSpanPublic Health Unit Name
THSpanChange in cases December 27
THSpanChange in cases December 28
THSpanCumulative case count
THSpanCumulative rate per 100,000 population
Span
TRTDSpanHaldimand-Norfolk Health Unit
TDSpan7
TDSpan10
TDSpan858
TDSpan752.1
TRTDSpanHalton Region Public Health
TDSpan67
TDSpan78
TDSpan5,457
TDSpan881.5
TRTDSpanNiagara Region Public Health
TDSpan53
TDSpan115
TDSpan3,745
TDSpan792.6
TRTDSpanRegion of Waterloo Public Health and Emergency Services
TDSpan45
TDSpan57
TDSpan5,671
TDSpan970.5
TRTDSpanWellington-Dufferin-Guelph Public Health
TDSpan35
TDSpan57
TDSpan2,515
TDSpan806.3
TRTDSpanTOTAL CENTRAL WEST
TDSpan323
TDSpan472
TDSpan24,966
TDSpan876.2
TRTDSpanTOTAL ONTARIO
TDSpan1,939
TDSpan2,553
TDSpan175,908
TDSpan1,183.4
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 27
THSpanChange in outbreaks December 28
THSpanNumber of ongoing outbreaks
THSpanCumulative number of outbreaks reported
Span
TRTDSpanLong-term care homes
TDSpan11
TDSpan5
TDSpan199
TDSpan903
TRTDSpanRetirement homes
TDSpan9
TDSpan5
TDSpan106
TDSpan471
TRTDSpanHospitals
TDSpan1
TDSpan0
TDSpan52
TDSpan234
Span
Note: Ongoing outbreaks include all outbreaks that are ‘Open’ in CCM plus without a ‘Declared Over Date’ recorded, or where the outbreak started more than five months ago, even for outbreaks where the Outbreak Status value selected in CCM/iPHIS is 'OPEN'. The start of the outbreak is determined by the onset date of first case, or if missing the outbreak reported date, or else if that is also missing, then the outbreak created date. 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 28, 2020 at 1 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 28, 2020 at 1 p.m.
Information successfully uploaded to the Ministry from Local Systems: Toronto Public Health (Coronavirus Rapid Entry System) CORES as of December 28, 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 28, 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 28, 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 28, 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 include all outbreaks that are ‘Open’ in CCM plus without a ‘Declared Over Date’ recorded, or where the outbreak started more than five months ago, even for outbreaks where the Outbreak Status value selected in CCM/iPHIS is 'OPEN'. The start of the outbreak is determined by the onset date of first case, or if missing the outbreak reported date, or else if that is also missing, then the outbreak created date. Ongoing outbreaks include all outbreaks that are ‘Open’ in CCM plus without a ‘Declared Over Date’ recorded, or where the outbreak started more than five months ago, even for outbreaks where the Outbreak Status value selected in CCM/iPHIS is 'OPEN'. The start of the outbreak is determined by the onset date of first case, or if missing the outbreak reported date, or else if that is also missing, then the outbreak created date.
‘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, December 13, 2020 to December 25, 2020 TableTRTHSpanPublic Health Unit Name
THSpanDec 13 to Dec 19
THSpanDec 14 to Dec 20
THSpanDec 15 to Dec 21
THSpanDec 16 to Dec 22
THSpanDec 17 to Dec 23
THSpanDec 18 to Dec 24
THSpanDec 19 to Dec 25
THSpan% change from Dec 13-19 to Dec 19-25
Span
TRTDSpanNORTH WEST
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TRTDSpanNorthwestern Health Unit
TDSpan5.7
TDSpan5.7
TDSpan10.3
TDSpan11.4
TDSpan11.4
TDSpan19.4
TDSpan19.4
TDSpan+240.4%
TRTDSpanThunder Bay District Health Unit
TDSpan44.7
TDSpan44.0
TDSpan48.7
TDSpan58.0
TDSpan58.0
TDSpan50.7
TDSpan46.7
TDSpan+4.5%
TRTDSpanNORTH EAST
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TRTDSpanAlgoma Public Health
TDSpan0.0
TDSpan0.0
TDSpan0.0
TDSpan0.9
TDSpan1.7
TDSpan1.7
TDSpan1.7
TDSpanN/A
TRTDSpanNorth Bay Parry Sound District Health Unit
TDSpan12.3
TDSpan12.3
TDSpan12.3
TDSpan13.1
TDSpan10.8
TDSpan12.3
TDSpan9.2
TDSpan-25.2%
TRTDSpanPorcupine Health Unit
TDSpan4.8
TDSpan3.6
TDSpan8.4
TDSpan10.8
TDSpan10.8
TDSpan9.6
TDSpan9.6
TDSpan+100.0%
TRTDSpanPublic Health Sudbury & Districts
TDSpan4.0
TDSpan4.0
TDSpan5.0
TDSpan5.5
TDSpan6.0
TDSpan5.5
TDSpan6.5
TDSpan+62.5%
TRTDSpanTimiskaming Health Unit
TDSpan33.7
TDSpan36.7
TDSpan45.9
TDSpan55.1
TDSpan61.2
TDSpan70.4
TDSpan79.5
TDSpan+135.9%
TRTDSpanEASTERN
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TRTDSpanOttawa Public Health
TDSpan27.0
TDSpan26.6
TDSpan27.2
TDSpan30.2
TDSpan29.6
TDSpan31.6
TDSpan36.7
TDSpan+35.9%
Span
TableTRTHSpanPublic Health Unit Name
THSpanDec 13 to Dec 19
THSpanDec 14 to Dec 20
THSpanDec 15 to Dec 21
THSpanDec 16 to Dec 22
THSpanDec 17 to Dec 23
THSpanDec 18 to Dec 24
THSpanDec 19 to Dec 25
THSpan% change from Dec 13-19 to Dec 19-25
Span
TRTDSpanEastern Ontario Health Unit
TDSpan45.5
TDSpan41.7
TDSpan41.7
TDSpan46.5
TDSpan49.4
TDSpan53.2
TDSpan50.8
TDSpan+11.6%
TRTDSpanHastings Prince Edward Public Health
TDSpan14.8
TDSpan16.6
TDSpan14.8
TDSpan15.4
TDSpan16.6
TDSpan14.8
TDSpan11.3
TDSpan-23.6%
TRTDSpanKingston, Frontenac and Lennox & Addington Public Health
TDSpan35.7
TDSpan35.7
TDSpan32.4
TDSpan28.7
TDSpan27.3
TDSpan27.3
TDSpan22.1
TDSpan-38.1%
TRTDSpanLeeds, Grenville & Lanark District Health Unit
TDSpan21.4
TDSpan20.8
TDSpan19.6
TDSpan17.9
TDSpan13.9
TDSpan12.1
TDSpan9.8
TDSpan-54.2%
TRTDSpanRenfrew County and District Health Unit
TDSpan15.6
TDSpan13.8
TDSpan16.6
TDSpan16.6
TDSpan13.8
TDSpan10.1
TDSpan12.9
TDSpan-17.3%
TRTDSpanCENTRAL EAST
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TRTDSpanDurham Region Health Department
TDSpan88.9
TDSpan93.2
TDSpan96.9
TDSpan96.7
TDSpan96.4
TDSpan92.1
TDSpan89.1
TDSpan+0.2%
TRTDSpanHaliburton, Kawartha, Pine Ridge District Health Unit
TDSpan24.3
TDSpan23.8
TDSpan24.9
TDSpan23.8
TDSpan25.4
TDSpan26.5
TDSpan25.4
TDSpan+4.5%
TRTDSpanPeel Public Health
TDSpan201.3
TDSpan208.6
TDSpan195.1
TDSpan190.9
TDSpan194.2
TDSpan190.4
TDSpan182.0
TDSpan-9.6%
Span
TableTRTHSpanPublic Health Unit Name
THSpanDec 13 to Dec 19
THSpanDec 14 to Dec 20
THSpanDec 15 to Dec 21
THSpanDec 16 to Dec 22
THSpanDec 17 to Dec 23
THSpanDec 18 to Dec 24
THSpanDec 19 to Dec 25
THSpan% change from Dec 13-19 to Dec 19-25
Span
TRTDSpanPeterborough Public Health
TDSpan16.2
TDSpan16.2
TDSpan19.6
TDSpan20.3
TDSpan20.3
TDSpan22.3
TDSpan31.8
TDSpan+96.3%
TRTDSpanSimcoe Muskoka District Health Unit
TDSpan59.5
TDSpan60.9
TDSpan62.4
TDSpan63.4
TDSpan59.5
TDSpan57.7
TDSpan57.2
TDSpan-3.9%
TRTDSpanYork Region Public Health
TDSpan120.7
TDSpan119.4
TDSpan124.2
TDSpan128.1
TDSpan129.5
TDSpan130.5
TDSpan129.2
TDSpan+7.0%
TRTDSpanTORONTO
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TRTDSpanToronto Public Health
TDSpan147.1
TDSpan149.9
TDSpan145.3
TDSpan149.9
TDSpan145.3
TDSpan141.2
TDSpan141.6
TDSpan-3.7%
TRTDSpanSOUTH WEST
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TRTDSpanChatham-Kent Public Health
TDSpan32.9
TDSpan32.0
TDSpan35.7
TDSpan41.4
TDSpan38.6
TDSpan36.7
TDSpan46.1
TDSpan+40.1%
TRTDSpanGrey Bruce Health Unit
TDSpan17.7
TDSpan17.1
TDSpan18.8
TDSpan21.2
TDSpan23.0
TDSpan21.2
TDSpan21.8
TDSpan+23.2%
TRTDSpanHuron Perth Public Health
TDSpan51.5
TDSpan54.4
TDSpan58.7
TDSpan52.2
TDSpan50.8
TDSpan61.5
TDSpan63.7
TDSpan+23.7%
TRTDSpanLambton Public Health
TDSpan55.7
TDSpan57.3
TDSpan64.9
TDSpan82.5
TDSpan77.1
TDSpan77.1
TDSpan83.2
TDSpan+49.4%
TRTDSpanMiddlesex-London Health Unit
TDSpan76.3
TDSpan83.7
TDSpan88.9
TDSpan100.3
TDSpan99.1
TDSpan92.8
TDSpan87.9
TDSpan+15.2%
TRTDSpanSouthwestern Public Health
TDSpan78.0
TDSpan77.1
TDSpan95.0
TDSpan103.5
TDSpan96.5
TDSpan96.5
TDSpan104.0
TDSpan+33.3%
TRTDSpanWindsor-Essex County Health Unit
TDSpan268.8
TDSpan275.4
TDSpan286.5
TDSpan289.1
TDSpan274.2
TDSpan253.7
TDSpan262.2
TDSpan-2.5%
Span
TableTRTHSpanPublic Health Unit Name
THSpanDec 13 to Dec 19
THSpanDec 14 to Dec 20
THSpanDec 15 to Dec 21
THSpanDec 16 to Dec 22
THSpanDec 17 to Dec 23
THSpanDec 18 to Dec 24
THSpanDec 19 to Dec 25
THSpan% change from Dec 13-19 to Dec 19-25
Span
TRTDSpanCENTRAL WEST
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TRTDSpanBrant County Health Unit
TDSpan70.9
TDSpan60.6
TDSpan60.6
TDSpan62.5
TDSpan63.1
TDSpan51.5
TDSpan49.6
TDSpan-30.0%
TRTDSpanCity of Hamilton Public Health Services
TDSpan121.4
TDSpan119.6
TDSpan121.6
TDSpan126.0
TDSpan123.1
TDSpan108.4
TDSpan109.1
TDSpan-10.1%
TRTDSpanHaldimand-Norfolk Health Unit
TDSpan59.6
TDSpan59.6
TDSpan62.2
TDSpan61.4
TDSpan70.1
TDSpan75.4
TDSpan72.8
TDSpan+22.1%
TRTDSpanHalton Region Public Health
TDSpan84.0
TDSpan85.6
TDSpan86.9
TDSpan84.6
TDSpan83.3
TDSpan87.9
TDSpan83.7
TDSpan-0.4%
TRTDSpanNiagara Region Public Health
TDSpan107.5
TDSpan109.4
TDSpan112.6
TDSpan118.5
TDSpan125.1
TDSpan131.9
TDSpan114.3
TDSpan+6.3%
TRTDSpanRegion of Waterloo Public Health and Emergency Services
TDSpan98.2
TDSpan98.7
TDSpan106.1
TDSpan106.4
TDSpan110.7
TDSpan109.2
TDSpan104.2
TDSpan+6.1%
TRTDSpanWellington-Dufferin-Guelph Public Health
TDSpan93.9
TDSpan91.7
TDSpan95.9
TDSpan96.8
TDSpan103.2
TDSpan105.5
TDSpan93.9
TDSpan0.0%
TRTDSpanTOTAL ONTARIO
TDSpan105.7
TDSpan107.5
TDSpan107.4
TDSpan109.7
TDSpan108.7
TDSpan106.4
TDSpan104.7
TDSpan-0.9%
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 28, 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