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Data & Analysis
Infectious Disease
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, outbreaks, laboratory testing and vaccines.

Webpage
Updated 30 Sep 2022

Surveillance Report

This report provides an overview of COVID-19 wastewater signals in Ontario and sub-regions.

Webpage
Updated 30 Sep 2022

Surveillance Report

This weekly report provides a high-level assessment of respiratory virus activity in Ontario for the most recent surveillance week.

1.6 MB
Updated 30 Sep 2022

Surveillance Report

This report summarizes the results of SARS-CoV-2 whole genome sequencing, including variants of concern (VOC) and variants of interest (VOI), conducted by the Ontario COVID-19 Genomics Network.

3.7 MB
Updated 27 Sep 2022

Surveillance Report

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

2.4 MB
Updated 30 Sep 2022

Case Trends

Surveillance Report

This weekly report provides a high-level assessment of respiratory virus activity in Ontario for the most recent surveillance week.

1.6 MB
Updated 30 Sep 2022

Surveillance Report

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

2.4 MB
Updated 30 Sep 2022

Interactive Report

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

Webpage
Updated 30 Sep 2022

Surveillance Report

This epidemiological summary is part of a series presenting information on COVID-19 cases with a focus on outcomes resulting in hospitalization or death. It examines differences between waves 1, 2, 3, 4 and 5 as well as by age groups.

1.2 MB
Updated 27 May 2022

Surveillance Report

A descriptive analysis characterizing confirmed COVID-19 cases who were hospitalized or in the ICU because of COVID-19 or who died, as reported in CCM.

2.5 MB
Updated 13 June 2022

Wastewater

Surveillance Report

This report provides an overview of COVID-19 wastewater signals in Ontario and sub-regions.

Webpage
Updated 30 Sep 2022

Vaccination

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.

2 MB
Updated 30 Sep 2022

Surveillance Report

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

1.8 MB
Updated 16 Sep 2022

Surveillance Report

This report describes confirmed cases of COVID-19 infection following COVID-19 vaccination.

1.5 MB
Updated 19 Sep 2022

Summary Report

The report describes the direct impacts of COVID-19 booster vaccinations on hospitalizations in Ontario.

1.3 MB
Updated 18 April 2022

Surveillance Report

This report uses the Ontario Marginalization Index to explore trends in health-equity among people aged 18 years or older who have received at least one dose of the COVID-19 vaccine in Ontario.

2.3 MB
Updated 7 March 2022

Variants

Surveillance Report

This report summarizes the results of SARS-CoV-2 whole genome sequencing, including variants of concern (VOC) and variants of interest (VOI), conducted by the Ontario COVID-19 Genomics Network.

3.7 MB
Updated 27 Sep 2022

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

Surveillance Report

Recorded cases of SARS-CoV-2 Variant, BA.2.20, in Ontario from February 1st to April 20th. Data organized by: total cases, date, sex and age group, geography, border testing, severity, and vaccination status.

1.5 MB
Updated 17 May 2022

Settings

Surveillance Report

A summary of confirmed COVID-19 cases and outbreaks in long-term care homes in Ontario.

2.1 MB
Updated 13 June 2022

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.

2.7 MB
Updated 26 Aug 2022

Archives

This page contains PHO’s previously released COVID-19 surveillance reports. They contain the most current information that was available at the time. These resources cover topics that include COVID-19 activity in Ontario over time, SARS-CoV-2 Genomic Surveillance, Adverse Events Following Immunization, positive cases and percent positivity, deaths, outbreaks, information by health care setting, health region, and public health unit, epidemic curves by region, age group, and gender, and more.

Please refer to our Ontario COVID-19 Data Tool or our weekly epidemiological summary for the most recent COVID-19 data from Ontario.

Surveillance Report

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

Webpage
Updated 30 Aug 2022

Surveillance Report

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

Webpage
Updated 21 Sep 2022

Related Information

External Resources

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Contact the Department

Communicable Diseases, Emergency Preparedness and Response

cdepr@oahpp.ca

Updated 16 Sep 2022
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