COVID-19 in Ontario: January 15, 2020 to December 14, 2020 1
Daily Epidemiologic Summary
COVID-19 in Ontario: January 15, 2020 to December 14, 2020
This report includes the most current information available from CCM and other case management systems (CCM plus) as of December 14, 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 144,396 confirmed cases of COVID-19 in Ontario reported to date.
Compared to the previous day, this represents:
An increase of 2,275 confirmed cases (percent change of +17.3%)
An increase of 20 deaths (percent change of -13.0%)
An increase of 1,810 resolved cases (percent change of +17.9%)
Please note that several updates have been made to how we extract and analyze COVID-19 case data that may impact today’s results. Notably, we updated our data extraction time to 1pm (from 10:30am) for health units using CCM resulting in a one-time increase in case counts, and new algorithms were implemented to identify duplicates and improve the quality of some fields.
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 14, 2020 2
Case Characteristics
Table 1a. Summary of recent confirmed cases of COVID-19: Ontario
Change in cases
December 13
Change in cases
December 14
Percentage change
December 14 compared to December 13
Cumulative case count
as of December 14
Total number of cases 1,940 2,275 +17.3% 144,396
Number of deaths 23 20 -13.0% 3,992
Number resolved 1,535 1,810 +17.9% 123,373
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 14, 2020 3
Table 1b. Summary of recent confirmed cases of COVID-19 by age group and gender: Ontario
Change in cases
December 13
Change in cases
December 14
Cumulative case count
as of December 14
Gender: Male 955 1,132 70,743
Gender: Female 968 1,133 72,794
Ages: 19 and under 300 341 18,211
Ages: 20-39 731 815 52,801
Ages: 40-59 521 672 41,386
Ages: 60-79 250 322 20,755
Ages: 80 and over 132 124 11,218
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 14, 2020: Ontario
Change in cases
December 13
Change in cases
December 14
Cumulative case count from August 30 to
December 14
Ages: 4 to 8 59 67 2,832
Ages: 9 to 13 80 90 3,946
Ages: 14 to 17 73 86 3,821
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 14, 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 13
Change in cases
December 14
Cumulative case count as of December 14
Residents 79 20 9,378
Health care workers 15 8 3,686
Deaths among residents 11 1 2,491
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 14, 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 14, 2020
Data Source: CCM plus
COVID-19 in Ontario: January 15, 2020 to December 14, 2020 6
Figure 2. Confirmed cases of COVID-19 by likely acquisition and approximation of symptom onset date: Ontario, January 15, 2020 to December 14, 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 14, 2020 7
Figure 3. Number of COVID-19 tests completed and percent positivity: Ontario, March 29, 2020 to December 13, 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 14, 2020 8
Severity Figure 4. Confirmed deaths among COVID-19 cases by date of death: Ontario, March 1, 2020 to December 14, 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 14, 2020 9
Table 4. Confirmed cases of COVID-19 by severity: Ontario
Blank cell Cumulative case count
as of December 14 Percentage of all
cases
Cumulative deaths reported (please note there may be a reporting delay for deaths)
3,992 2.8%
Deaths reported in ages: 19 and under 1 0.0%
Deaths reported in ages: 20-39 14 0.0%
Deaths reported in ages: 40-59 158 0.4%
Deaths reported in ages: 60-79 1,048 5.0%
Deaths reported in ages: 80 and over 2,771 24.7%
Ever in ICU 1,646 1.1%
Ever hospitalized 8,421 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
COVID-19 in Ontario: January 15, 2020 to December 14, 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 13
Change in cases
December 14
Cumulative case count
Cumulative rate per 100,000 population
Northwestern Health Unit 0 1 135 154.0
Thunder Bay District Health Unit 4 3 438 292.1
TOTAL NORTH WEST 4 4 573 241.1
Algoma Public Health 0 0 62 54.2
North Bay Parry Sound District Health Unit
0 2 94 72.4
Porcupine Health Unit 0 1 118 141.4
Public Health Sudbury & Districts 0 4 246 123.6
Timiskaming Health Unit 1 1 28 85.7
TOTAL NORTH EAST 1 8 548 98.0
Ottawa Public Health 45 -9 9,102 863.0
Eastern Ontario Health Unit 27 11 1,109 531.4
Hastings Prince Edward Public Health
3 4 224 132.9
Kingston, Frontenac and Lennox & Addington Public Health
11 5 394 185.2
Leeds, Grenville & Lanark District Health Unit
8 3 600 346.5
Renfrew County and District Health Unit
3 2 203 186.9
TOTAL EASTERN 97 16 11,632 603.8
COVID-19 in Ontario: January 15, 2020 to December 14, 2020 11
Public Health Unit Name Change in
cases December 13
Change in cases
December 14
Cumulative case count
Cumulative rate per 100,000 population
Durham Region Health Department 68 92 5,689 798.6
Haliburton, Kawartha, Pine Ridge District Health Unit
11 8 415 219.6
Peel Public Health 390 586 32,228 2006.8
Peterborough Public Health 4 1 247 166.9
Simcoe Muskoka District Health Unit
33 55 2,732 455.6
York Region Public Health 191 154 13,510 1102.1
TOTAL CENTRAL EAST 697 896 54,821 1223.5
Toronto Public Health 544 711 47,871 1534.2
TOTAL TORONTO 544 711 47,871 1534.2
Chatham-Kent Public Health 0 8 553 520.1
Grey Bruce Health Unit 5 2 381 224.3
Huron Perth Public Health 12 12 472 337.7
Lambton Public Health 3 5 455 347.4
Middlesex-London Health Unit 43 31 2,130 419.7
Southwestern Public Health 26 21 780 368.8
Windsor-Essex County Health Unit 114 185 4,874 1147.3
TOTAL SOUTH WEST 203 264 9,645 570.4
Brant County Health Unit 13 28 755 486.5
City of Hamilton Public Health Services
134 99 4,359 736.1
COVID-19 in Ontario: January 15, 2020 to December 14, 2020 12
Public Health Unit Name Change in
cases December 13
Change in cases
December 14
Cumulative case count
Cumulative rate per 100,000 population
Haldimand-Norfolk Health Unit 7 11 721 632.0
Halton Region Public Health 64 65 4,375 706.7
Niagara Region Public Health 58 65 2,656 562.1
Region of Waterloo Public Health and Emergency Services
71 71 4,564 781.0
Wellington-Dufferin-Guelph Public Health
47 37 1,876 601.5
TOTAL CENTRAL WEST 394 376 19,306 677.6
TOTAL ONTARIO 1,940 2,275 144,396 971.4
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 14, 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 13
Change in outbreaks
December 14
Number of ongoing
outbreaks
Cumulative number of outbreaks reported
Long-term care homes 7 1 139 790
Retirement homes 6 3 79 407
Hospitals 0 2 42 199
Note: Ongoing outbreaks includes all outbreaks that are ‘Open’ in CCM plus without a ‘Declared Over Date’ recorded.
Data Source: CCM plus
COVID-19 in Ontario: January 15, 2020 to December 14, 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 14, 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 14, 2020 at 2 p.m.
Information successfully uploaded to the Ministry from the Public Health Case and Contact Management Solution (CCM) for all other PHUs as of December 14, 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 14, 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 14, 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.
COVID-19 in Ontario: January 15, 2020 to December 14, 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 29, 2020 to December 11, 2020
Public Health Unit Name
Nov 29 to
Dec 5
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
% change from
Nov 29-Dec 5 to Dec 5-11
NORTH WEST
Northwestern Health Unit
10.3 10.3 11.4 12.5 13.7 10.3 9.1 -11.7%
Thunder Bay District Health Unit
45.3 44.7 41.3 46.0 45.3 43.3 44.7 -1.3%
NORTH EAST
Algoma Public Health
0.9 0.9 0.9 0.9 0.0 0.9 0.9 0.0%
North Bay Parry Sound District Health Unit
6.9 8.5 8.5 8.5 5.4 3.9 5.4 -21.7%
Porcupine Health Unit
12.0 12.0 12.0 10.8 7.2 1.2 0.0 -100.0%
Public Health Sudbury & Districts
2.0 4.0 3.5 5.0 5.0 4.5 4.5 +125.0%
Timiskaming Health Unit
6.1 9.2 12.2 18.4 21.4 24.5 24.5 +301.6%
EASTERN
Ottawa Public Health
28.4 29.6 27.4 30.0 30.1 29.1 30.1 +6.0%
COVID-19 in Ontario: January 15, 2020 to December 14, 2020 18
Public Health Unit Name
Nov 29 to
Dec 5
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
% change from
Nov 29-Dec 5 to Dec 5-11
Eastern Ontario Health Unit
60.8 73.3 73.8 67.6 69.0 64.2 59.9 -1.5%
Hastings Prince Edward Public Health
22.6 20.2 20.2 21.4 24.3 27.3 27.9 +23.5%
Kingston, Frontenac and Lennox & Addington Public Health
21.6 24.9 24.4 29.6 32.0 35.3 41.4 +91.7%
Leeds, Grenville & Lanark District Health Unit
23.1 25.4 27.7 31.8 36.4 43.3 41.0 +77.5%
Renfrew County and District Health Unit
19.3 25.8 33.1 33.1 49.7 52.5 39.6 +105.2%
CENTRAL EAST
Durham Region Health Department
84.5 90.0 89.0 83.2 86.6 83.9 88.6 +4.9%
Haliburton, Kawartha, Pine Ridge District Health Unit
18.5 20.1 19.6 16.4 20.1 24.3 27.0 +45.9%
Peel Public Health
202.1 202.9 205.0 197.8 197.2 194.3 193.5 -4.3%
COVID-19 in Ontario: January 15, 2020 to December 14, 2020 19
Public Health Unit Name
Nov 29 to
Dec 5
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
% change from
Nov 29-Dec 5 to Dec 5-11
Peterborough Public Health
10.8 9.5 10.1 12.2 10.8 10.8 10.8 0.0%
Simcoe Muskoka District Health Unit
45.0 50.5 51.9 56.7 56.0 55.5 54.4 +20.9%
York Region Public Health
110.1 109.2 107.9 104.2 109.2 110.1 105.8 -3.9%
TORONTO
Toronto Public Health
122.9 120.1 121.4 124.7 122.9 122.6 120.8 -1.7%
SOUTH WEST
Chatham-Kent Public Health
29.2 33.9 27.3 16.9 20.7 19.8 20.7 -29.1%
Grey Bruce Health Unit
21.2 18.8 15.9 18.8 19.4 18.8 18.8 -11.3%
Huron Perth Public Health
47.2 44.4 45.8 42.9 39.4 35.8 43.6 -7.6%
Lambton Public Health
15.3 15.3 17.6 15.3 19.1 19.1 15.3 0.0%
Middlesex-London Health Unit
44.1 48.7 45.7 48.7 48.3 47.5 51.0 +15.6%
Southwestern Public Health
41.6 40.7 43.0 37.4 42.6 47.8 48.7 +17.1%
Windsor-Essex County Health Unit
94.4 97.5 106.6 123.6 132.3 135.6 142.9 +51.4%
COVID-19 in Ontario: January 15, 2020 to December 14, 2020 20
Public Health Unit Name
Nov 29 to
Dec 5
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
% change from
Nov 29-Dec 5 to Dec 5-11
CENTRAL WEST
Brant County Health Unit
34.1 29.6 30.9 32.9 36.7 41.2 45.7 +34.0%
City of Hamilton Public Health Services
80.9 78.4 84.8 86.1 88.0 92.2 93.7 +15.8%
Haldimand-Norfolk Health Unit
22.8 23.7 25.4 32.4 36.8 45.6 45.6 +100.0%
Halton Region Public Health
63.2 64.4 70.7 69.6 71.1 67.8 70.6 +11.7%
Niagara Region Public Health
34.9 35.8 36.2 39.2 40.4 48.9 55.0 +57.6%
Region of Waterloo Public Health and Emergency Services
77.5 77.5 75.5 69.5 68.3 72.9 78.0 0.6%
Wellington-Dufferin-Guelph Public Health
63.5 67.3 69.6 76.9 85.3 81.4 80.2 +26.3%
TOTAL ONTARIO
85.2 85.7 86.7 87.0 88.1 88.3 88.6 4.0%
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 14, 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 14, 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 14, 2020 This report includes the most current information available from CCM and other case management systems (CCM plus) as of December 14, 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 144,396 confirmed cases of COVID-19 in Ontario reported to date. There are a total of 144,396 confirmed cases of COVID-19 in Ontario reported to date. There are a total of 144,396 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 2,275 confirmed cases (percent change of +17.3%) An increase of 2,275 confirmed cases (percent change of +17.3%)
An increase of 20 deaths (percent change of -13.0%) An increase of 20 deaths (percent change of -13.0%)
An increase of 1,810 resolved cases (percent change of +17.9%) An increase of 1,810 resolved cases (percent change of +17.9%)
Please note that several updates have been made to how we extract and analyze COVID-19 case data that may impact today’s results. Notably, we updated our data extraction time to 1pm (from 10:30am) for health units using CCM resulting in a one-time increase in case counts, and new algorithms were implemented to identify duplicates and improve the quality of some fields. 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 13
THSpanChange in cases December 14
THSpanPercentage change December 14 compared to December 13
THSpanCumulative case count as of December 14
Span
TRTDSpanTotal number of cases
TDSpan1,940
TDSpan2,275
TDSpan+17.3%
TDSpan144,396
TRTDSpanNumber of deaths
TDSpan23
TDSpan20
TDSpan-13.0%
TDSpan3,992
TRTDSpanNumber resolved
TDSpan1,535
TDSpan1,810
TDSpan+17.9%
TDSpan123,373
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 13
THSpanChange in cases December 14
THSpanCumulative case count as of December 14
Span
TRTDSpanGender: Male
TDSpan955
TDSpan1,132
TDSpan70,743
TRTDSpanGender: Female
TDSpan968
TDSpan1,133
TDSpan72,794
TRTDSpanAges: 19 and under
TDSpan300
TDSpan341
TDSpan18,211
TRTDSpanAges: 20-39
TDSpan731
TDSpan815
TDSpan52,801
TRTDSpanAges: 40-59
TDSpan521
TDSpan672
TDSpan41,386
TRTDSpanAges: 60-79
TDSpan250
TDSpan322
TDSpan20,755
TRTDSpanAges: 80 and over
TDSpan132
TDSpan124
TDSpan11,218
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 14, 2020: Ontario TableTRTHSpan
THSpanChange in cases December 13
THSpanChange in cases December 14
THSpanCumulative case count from August 30 to December 14
Span
TRTDSpanAges: 4 to 8
TDSpan59
TDSpan67
TDSpan2,832
TRTDSpanAges: 9 to 13
TDSpan80
TDSpan90
TDSpan3,946
TRTDSpanAges: 14 to 17
TDSpan73
TDSpan86
TDSpan3,821
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 13
THSpanChange in cases December 14
THSpanCumulative case count as of December 14
Span
TRTDSpanResidents
TDSpan79
TDSpan20
TDSpan9,378
TRTDSpanHealth care workers
TDSpan15
TDSpan8
TDSpan3,686
TRTDSpanDeaths among residents
TDSpan11
TDSpan1
TDSpan2,491
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 14, 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 14, 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 13, 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 14, 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 14
THSpanPercentage of all cases
Span
TRTDSpanCumulative deaths reported (please note there may be a reporting delay for deaths)
TDSpan3,992
TDSpan2.8%
TRTDSpanDeaths reported in ages: 19 and under
TDSpan1
TDSpan0.0%
TRTDSpanDeaths reported in ages: 20-39
TDSpan14
TDSpan0.0%
TRTDSpanDeaths reported in ages: 40-59
TDSpan158
TDSpan0.4%
TRTDSpanDeaths reported in ages: 60-79
TDSpan1,048
TDSpan5.0%
TRTDSpanDeaths reported in ages: 80 and over
TDSpan2,771
TDSpan24.7%
TRTDSpanEver in ICU
TDSpan1,646
TDSpan1.1%
TRTDSpanEver hospitalized
TDSpan8,421
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 13
THSpanChange in cases December 14
THSpanCumulative case count
THSpanCumulative rate per 100,000 population
Span
TRTDSpanNorthwestern Health Unit
TDSpan0
TDSpan1
TDSpan135
TDSpan154.0
TRTDSpanThunder Bay District Health Unit
TDSpan4
TDSpan3
TDSpan438
TDSpan292.1
TRTDSpanTOTAL NORTH WEST
TDSpan4
TDSpan4
TDSpan573
TDSpan241.1
TRTDSpanAlgoma Public Health
TDSpan0
TDSpan0
TDSpan62
TDSpan54.2
TRTDSpanNorth Bay Parry Sound District Health Unit
TDSpan0
TDSpan2
TDSpan94
TDSpan72.4
TRTDSpanPorcupine Health Unit
TDSpan0
TDSpan1
TDSpan118
TDSpan141.4
TRTDSpanPublic Health Sudbury & Districts
TDSpan0
TDSpan4
TDSpan246
TDSpan123.6
TRTDSpanTimiskaming Health Unit
TDSpan1
TDSpan1
TDSpan28
TDSpan85.7
TRTDSpanTOTAL NORTH EAST
TDSpan1
TDSpan8
TDSpan548
TDSpan98.0
TRTDSpanOttawa Public Health
TDSpan45
TDSpan-9
TDSpan9,102
TDSpan863.0
TRTDSpanEastern Ontario Health Unit
TDSpan27
TDSpan11
TDSpan1,109
TDSpan531.4
TRTDSpanHastings Prince Edward Public Health
TDSpan3
TDSpan4
TDSpan224
TDSpan132.9
TRTDSpanKingston, Frontenac and Lennox & Addington Public Health
TDSpan11
TDSpan5
TDSpan394
TDSpan185.2
TRTDSpanLeeds, Grenville & Lanark District Health Unit
TDSpan8
TDSpan3
TDSpan600
TDSpan346.5
TRTDSpanRenfrew County and District Health Unit
TDSpan3
TDSpan2
TDSpan203
TDSpan186.9
TRTDSpanTOTAL EASTERN
TDSpan97
TDSpan16
TDSpan11,632
TDSpan603.8
Span
TableTRTHSpanPublic Health Unit Name
THSpanChange in cases December 13
THSpanChange in cases December 14
THSpanCumulative case count
THSpanCumulative rate per 100,000 population
Span
TRTDSpanDurham Region Health Department
TDSpan68
TDSpan92
TDSpan5,689
TDSpan798.6
TRTDSpanHaliburton, Kawartha, Pine Ridge District Health Unit
TDSpan11
TDSpan8
TDSpan415
TDSpan219.6
TRTDSpanPeel Public Health
TDSpan390
TDSpan586
TDSpan32,228
TDSpan2006.8
TRTDSpanPeterborough Public Health
TDSpan4
TDSpan1
TDSpan247
TDSpan166.9
TRTDSpanSimcoe Muskoka District Health Unit
TDSpan33
TDSpan55
TDSpan2,732
TDSpan455.6
TRTDSpanYork Region Public Health
TDSpan191
TDSpan154
TDSpan13,510
TDSpan1102.1
TRTDSpanTOTAL CENTRAL EAST
TDSpan697
TDSpan896
TDSpan54,821
TDSpan1223.5
TRTDSpanToronto Public Health
TDSpan544
TDSpan711
TDSpan47,871
TDSpan1534.2
TRTDSpanTOTAL TORONTO
TDSpan544
TDSpan711
TDSpan47,871
TDSpan1534.2
TRTDSpanChatham-Kent Public Health
TDSpan0
TDSpan8
TDSpan553
TDSpan520.1
TRTDSpanGrey Bruce Health Unit
TDSpan5
TDSpan2
TDSpan381
TDSpan224.3
TRTDSpanHuron Perth Public Health
TDSpan12
TDSpan12
TDSpan472
TDSpan337.7
TRTDSpanLambton Public Health
TDSpan3
TDSpan5
TDSpan455
TDSpan347.4
TRTDSpanMiddlesex-London Health Unit
TDSpan43
TDSpan31
TDSpan2,130
TDSpan419.7
TRTDSpanSouthwestern Public Health
TDSpan26
TDSpan21
TDSpan780
TDSpan368.8
TRTDSpanWindsor-Essex County Health Unit
TDSpan114
TDSpan185
TDSpan4,874
TDSpan1147.3
TRTDSpanTOTAL SOUTH WEST
TDSpan203
TDSpan264
TDSpan9,645
TDSpan570.4
TRTDSpanBrant County Health Unit
TDSpan13
TDSpan28
TDSpan755
TDSpan486.5
TRTDSpanCity of Hamilton Public Health Services
TDSpan134
TDSpan99
TDSpan4,359
TDSpan736.1
Span
TableTRTHSpanPublic Health Unit Name
THSpanChange in cases December 13
THSpanChange in cases December 14
THSpanCumulative case count
THSpanCumulative rate per 100,000 population
Span
TRTDSpanHaldimand-Norfolk Health Unit
TDSpan7
TDSpan11
TDSpan721
TDSpan632.0
TRTDSpanHalton Region Public Health
TDSpan64
TDSpan65
TDSpan4,375
TDSpan706.7
TRTDSpanNiagara Region Public Health
TDSpan58
TDSpan65
TDSpan2,656
TDSpan562.1
TRTDSpanRegion of Waterloo Public Health and Emergency Services
TDSpan71
TDSpan71
TDSpan4,564
TDSpan781.0
TRTDSpanWellington-Dufferin-Guelph Public Health
TDSpan47
TDSpan37
TDSpan1,876
TDSpan601.5
TRTDSpanTOTAL CENTRAL WEST
TDSpan394
TDSpan376
TDSpan19,306
TDSpan677.6
TRTDSpanTOTAL ONTARIO
TDSpan1,940
TDSpan2,275
TDSpan144,396
TDSpan971.4
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 13
THSpanChange in outbreaks December 14
THSpanNumber of ongoing outbreaks
THSpanCumulative number of outbreaks reported
Span
TRTDSpanLong-term care homes
TDSpan7
TDSpan1
TDSpan139
TDSpan790
TRTDSpanRetirement homes
TDSpan6
TDSpan3
TDSpan79
TDSpan407
TRTDSpanHospitals
TDSpan0
TDSpan2
TDSpan42
TDSpan199
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 14, 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 14, 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 14, 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 14, 2020 at 2 p.m.
Information successfully uploaded to the Ministry from the Public Health Case and Contact Management Solution (CCM) for all other PHUs as of December 14, 2020 at 1 p.m.. Information successfully uploaded to the Ministry from the Public Health Case and Contact Management Solution (CCM) for all other PHUs as of December 14, 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 29, 2020 to December 11, 2020 TableTRTHSpanPublic Health Unit Name
THSpanNov 29 to Dec 5
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
THSpan% change from Nov 29-Dec 5 to Dec 5-11
Span
TRTDSpanNORTH WEST
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TRTDSpanNorthwestern Health Unit
TDSpan10.3
TDSpan10.3
TDSpan11.4
TDSpan12.5
TDSpan13.7
TDSpan10.3
TDSpan9.1
TDSpan-11.7%
TRTDSpanThunder Bay District Health Unit
TDSpan45.3
TDSpan44.7
TDSpan41.3
TDSpan46.0
TDSpan45.3
TDSpan43.3
TDSpan44.7
TDSpan-1.3%
TRTDSpanNORTH EAST
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TRTDSpanAlgoma Public Health
TDSpan0.9
TDSpan0.9
TDSpan0.9
TDSpan0.9
TDSpan0.0
TDSpan0.9
TDSpan0.9
TDSpan0.0%
TRTDSpanNorth Bay Parry Sound District Health Unit
TDSpan6.9
TDSpan8.5
TDSpan8.5
TDSpan8.5
TDSpan5.4
TDSpan3.9
TDSpan5.4
TDSpan-21.7%
TRTDSpanPorcupine Health Unit
TDSpan12.0
TDSpan12.0
TDSpan12.0
TDSpan10.8
TDSpan7.2
TDSpan1.2
TDSpan0.0
TDSpan-100.0%
TRTDSpanPublic Health Sudbury & Districts
TDSpan2.0
TDSpan4.0
TDSpan3.5
TDSpan5.0
TDSpan5.0
TDSpan4.5
TDSpan4.5
TDSpan+125.0%
TRTDSpanTimiskaming Health Unit
TDSpan6.1
TDSpan9.2
TDSpan12.2
TDSpan18.4
TDSpan21.4
TDSpan24.5
TDSpan24.5
TDSpan+301.6%
TRTDSpanEASTERN
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TRTDSpanOttawa Public Health
TDSpan28.4
TDSpan29.6
TDSpan27.4
TDSpan30.0
TDSpan30.1
TDSpan29.1
TDSpan30.1
TDSpan+6.0%
Span
TableTRTHSpanPublic Health Unit Name
THSpanNov 29 to Dec 5
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
THSpan% change from Nov 29-Dec 5 to Dec 5-11
Span
TRTDSpanEastern Ontario Health Unit
TDSpan60.8
TDSpan73.3
TDSpan73.8
TDSpan67.6
TDSpan69.0
TDSpan64.2
TDSpan59.9
TDSpan-1.5%
TRTDSpanHastings Prince Edward Public Health
TDSpan22.6
TDSpan20.2
TDSpan20.2
TDSpan21.4
TDSpan24.3
TDSpan27.3
TDSpan27.9
TDSpan+23.5%
TRTDSpanKingston, Frontenac and Lennox & Addington Public Health
TDSpan21.6
TDSpan24.9
TDSpan24.4
TDSpan29.6
TDSpan32.0
TDSpan35.3
TDSpan41.4
TDSpan+91.7%
TRTDSpanLeeds, Grenville & Lanark District Health Unit
TDSpan23.1
TDSpan25.4
TDSpan27.7
TDSpan31.8
TDSpan36.4
TDSpan43.3
TDSpan41.0
TDSpan+77.5%
TRTDSpanRenfrew County and District Health Unit
TDSpan19.3
TDSpan25.8
TDSpan33.1
TDSpan33.1
TDSpan49.7
TDSpan52.5
TDSpan39.6
TDSpan+105.2%
TRTDSpanCENTRAL EAST
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TRTDSpanDurham Region Health Department
TDSpan84.5
TDSpan90.0
TDSpan89.0
TDSpan83.2
TDSpan86.6
TDSpan83.9
TDSpan88.6
TDSpan+4.9%
TRTDSpanHaliburton, Kawartha, Pine Ridge District Health Unit
TDSpan18.5
TDSpan20.1
TDSpan19.6
TDSpan16.4
TDSpan20.1
TDSpan24.3
TDSpan27.0
TDSpan+45.9%
TRTDSpanPeel Public Health
TDSpan202.1
TDSpan202.9
TDSpan205.0
TDSpan197.8
TDSpan197.2
TDSpan194.3
TDSpan193.5
TDSpan-4.3%
Span
TableTRTHSpanPublic Health Unit Name
THSpanNov 29 to Dec 5
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
THSpan% change from Nov 29-Dec 5 to Dec 5-11
Span
TRTDSpanPeterborough Public Health
TDSpan10.8
TDSpan9.5
TDSpan10.1
TDSpan12.2
TDSpan10.8
TDSpan10.8
TDSpan10.8
TDSpan0.0%
TRTDSpanSimcoe Muskoka District Health Unit
TDSpan45.0
TDSpan50.5
TDSpan51.9
TDSpan56.7
TDSpan56.0
TDSpan55.5
TDSpan54.4
TDSpan+20.9%
TRTDSpanYork Region Public Health
TDSpan110.1
TDSpan109.2
TDSpan107.9
TDSpan104.2
TDSpan109.2
TDSpan110.1
TDSpan105.8
TDSpan-3.9%
TRTDSpanTORONTO
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TRTDSpanToronto Public Health
TDSpan122.9
TDSpan120.1
TDSpan121.4
TDSpan124.7
TDSpan122.9
TDSpan122.6
TDSpan120.8
TDSpan-1.7%
TRTDSpanSOUTH WEST
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TRTDSpanChatham-Kent Public Health
TDSpan29.2
TDSpan33.9
TDSpan27.3
TDSpan16.9
TDSpan20.7
TDSpan19.8
TDSpan20.7
TDSpan-29.1%
TRTDSpanGrey Bruce Health Unit
TDSpan21.2
TDSpan18.8
TDSpan15.9
TDSpan18.8
TDSpan19.4
TDSpan18.8
TDSpan18.8
TDSpan-11.3%
TRTDSpanHuron Perth Public Health
TDSpan47.2
TDSpan44.4
TDSpan45.8
TDSpan42.9
TDSpan39.4
TDSpan35.8
TDSpan43.6
TDSpan-7.6%
TRTDSpanLambton Public Health
TDSpan15.3
TDSpan15.3
TDSpan17.6
TDSpan15.3
TDSpan19.1
TDSpan19.1
TDSpan15.3
TDSpan0.0%
TRTDSpanMiddlesex-London Health Unit
TDSpan44.1
TDSpan48.7
TDSpan45.7
TDSpan48.7
TDSpan48.3
TDSpan47.5
TDSpan51.0
TDSpan+15.6%
TRTDSpanSouthwestern Public Health
TDSpan41.6
TDSpan40.7
TDSpan43.0
TDSpan37.4
TDSpan42.6
TDSpan47.8
TDSpan48.7
TDSpan+17.1%
TRTDSpanWindsor-Essex County Health Unit
TDSpan94.4
TDSpan97.5
TDSpan106.6
TDSpan123.6
TDSpan132.3
TDSpan135.6
TDSpan142.9
TDSpan+51.4%
Span
TableTRTHSpanPublic Health Unit Name
THSpanNov 29 to Dec 5
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
THSpan% change from Nov 29-Dec 5 to Dec 5-11
Span
TRTDSpanCENTRAL WEST
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TDSpan
TRTDSpanBrant County Health Unit
TDSpan34.1
TDSpan29.6
TDSpan30.9
TDSpan32.9
TDSpan36.7
TDSpan41.2
TDSpan45.7
TDSpan+34.0%
TRTDSpanCity of Hamilton Public Health Services
TDSpan80.9
TDSpan78.4
TDSpan84.8
TDSpan86.1
TDSpan88.0
TDSpan92.2
TDSpan93.7
TDSpan+15.8%
TRTDSpanHaldimand-Norfolk Health Unit
TDSpan22.8
TDSpan23.7
TDSpan25.4
TDSpan32.4
TDSpan36.8
TDSpan45.6
TDSpan45.6
TDSpan+100.0%
TRTDSpanHalton Region Public Health
TDSpan63.2
TDSpan64.4
TDSpan70.7
TDSpan69.6
TDSpan71.1
TDSpan67.8
TDSpan70.6
TDSpan+11.7%
TRTDSpanNiagara Region Public Health
TDSpan34.9
TDSpan35.8
TDSpan36.2
TDSpan39.2
TDSpan40.4
TDSpan48.9
TDSpan55.0
TDSpan+57.6%
TRTDSpanRegion of Waterloo Public Health and Emergency Services
TDSpan77.5
TDSpan77.5
TDSpan75.5
TDSpan69.5
TDSpan68.3
TDSpan72.9
TDSpan78.0
TDSpan0.6%
TRTDSpanWellington-Dufferin-Guelph Public Health
TDSpan63.5
TDSpan67.3
TDSpan69.6
TDSpan76.9
TDSpan85.3
TDSpan81.4
TDSpan80.2
TDSpan+26.3%
TRTDSpanTOTAL ONTARIO
TDSpan85.2
TDSpan85.7
TDSpan86.7
TDSpan87.0
TDSpan88.1
TDSpan88.3
TDSpan88.6
TDSpan4.0%
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 14, 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