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COVID-19 Data and Surveillance

COVID-19 Data and Surveillance

Data and surveillance play a vital role in managing a pandemic. The data that is collected can tell us how the pandemic is evolving, assess severity and risk and develop the necessary interventions to prevent further spread.

Since the onset of COVID-19, PHO has worked closely with the Ministry of Health and our local public health partners to collect, interpret and share COVID-19 data.

Featured

Interactive Report

Explore confirmed COVID-19 data in Ontario by: case trends over time including hospitalizations and deaths, age and sex, public health unit, acquisition, outbreaks and laboratory testing.

Webpage
Updated 14 April 2021

Interactive Report

This interactive tool explores the evolution and spread of SARS-CoV-2 using genomic data produced and analyzed at Public Health Ontario. The tool is intended for genomics researchers and experts, epidemiologists, virologists and public health experts.

Webpage
Updated 1 April 2021

Summary Report

Positive COVID-19 tests on January 20 in Ontario were sent to PHO for screening and sequencing to identify the prevalence of variants of concern. Explore the results.

798 KB
Published 16 Feb 2021

Routine Surveillance Reports

Surveillance Report

This daily report provides an epidemiological summary of COVID-19 activity in Ontario to date.

2.7 MB
Updated 14 April 2021

Surveillance Report

This weekly report provides an epidemiological summary of weekly COVID-19 activity in Ontario over time.

2.3 MB
Updated 8 April 2021

Surveillance Report

This report provides a summary of the case counts of COVID-19, likely source of acquisition, and the timeliness of testing and investigation in Ontario with breakdowns by health region and public health unit.

5.9 MB
Updated 8 April 2021

Surveillance Report

Find a description of vaccine uptake and immunization coverage over time, as well as by priority population, age and gender and public health unit.

1.1 MB
Updated 8 April 2021

Summary Report

This weekly report provides a summary of adverse events following immunization (AEFIs) for COVID-19 vaccines in Ontario reported to date.

1.5 MB
Updated 14 April 2021

Surveillance Report

The number of COVID-19 confirmed cases in Ontario is summarized on epidemic curves by region, age group, and gender. The reproduction number and doubling time by region is also provided.

2.3 MB
Updated 13 April 2021

Surveillance Report

An archived collection of weekly reports that provided an epidemiological summary of COVID-19 activity in Ontario.

Webpage
Updated 8 April 2021

Summary Report

PHO is using serosurveillance to better understand what proportion of the Ontario population has COVID-19 antibodies and to identify hot spots and high risk groups.

Webpage
Updated 18 Dec 2020

Enhanced Epidemiological Summaries

Surveillance Report

This report provides a summary of confirmed adverse events following immunization (AEFIs) managed as anaphylaxis that occurred following a COVID-19 vaccines in Ontario.

646 KB
Published 19 March 2021

Surveillance Report

An epidemiologic summary of cumulative confirmed COVID-19 outbreaks and outbreak-associated cases in Ontario by setting, from February 16, 2020 to December 26, 2020.

1.3 MB
Published 11 March 2021

Surveillance Report

This report provides a focused analysis on confirmed outbreaks in elementary and secondary schools in Ontario from August 30, 2020 to January 2, 2021, as well as cases associated with these outbreaks.

1.3 MB
Updated 11 March 2021

Surveillance Report

Descriptive summary of COVID-19 variant of concern cases circulating in Ontario.

1.7 MB
Updated 9 April 2021

Surveillance Report

A focused analysis of transmission patterns, testing strategy, case detection and severe outcomes of COVID-19 cases in Ontario. We review changes over time within the context of key public health measures.

1.6 MB
Published 17 Aug 2020

Surveillance Report

An analysis of COVID-19 case characteristics among health care workers including trends, geography and severity.

1.5 MB
Updated 5 Aug 2020

Surveillance Report

This report combines individual case data with neighbourhood-level data on socio-economic status to assess how COVID-19 impacts Ontario neighbourhoods differently.

1.9 MB
Updated 29 June 2020

Surveillance Report

This report provides a focused analysis of confirmed COVID-19 cases and outbreaks reported among long-term care home (LTCH) residents and health care workers (HCW) in Ontario.

1.9 MB
Updated 23 March 2021

Surveillance Report

This is a summary of Ontario COVID-19 growth, confirmed cases and deaths Mar 8-June 24, 2020, focused on case growth and estimates of the reproduction number.
3.6 MB
Updated 26 June 2020

Surveillance Report

This report provides a focused analysis of the severity of illness among reported laboratory-confirmed COVID-19 cases in Ontario from January 15 to May 14, 2020.

1.4 MB
Updated 16 June 2020

Surveillance Report

This report provides estimates of the proportion of infections that are identified as cases in Ontario by age group, up to May 17, 2020.

1.3 MB
Updated 12 June 2020

Surveillance Report

This report explores neighbourhood-level trends among laboratory-confirmed COVID-19 cases in Ontario who do not reside in long-term care, from a health equity perspective. The report uses data from January 15 to May 14, 2020.

1.8 MB
Updated 1 June 2020

Surveillance Report

An analysis of COVID-19 infection among reported laboratory-confirmed cases in children in Ontario from January 15 to July 13, 2020.

1.5 MB
Updated 26 March 2021
Event

The Fourth Wave: Child and Family Health and Well-being During the COVID-19 Pandemic

This webinar focuses on Ontario-specific data from two sources: a province-wide survey that was launched by the Offord Centre for Child Studies from May to June 2020, which focused on caregiver and family functioning during COVID-19.

See the Event Details

Related Information

External Resources

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Contact the Department

Communicable Diseases, Emergency Preparedness and Response

cdepr@oahpp.ca

Updated 14 April 2021
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