COVID-19 Ottawa Residents Tested
Daily number of Ottawa residents tested for COVID-19 and the percentage of residents tested with laboratory-confirmed COVID-19.
Daily number of Ottawa residents tested for COVID-19 and the percentage of residents tested with laboratory-confirmed COVID-19. Data are based on information extracted from the Ontario Laboratories Information System (OLIS) on Thursdays.
Accuracy: Points of consideration for interpretation of the data:
- Not all labs report to OLIS and only patients with health card numbers are included in the OLIS dataset.
- Once an individual is confirmed positive, subsequent tests for that individual are excluded from the daily totals.
- Duplicate tests are excluded from the total number of positive tests, including those that arose from multiple tests of cure.
- Results for patients who placed an OLIS consent block (~50 records province-wide) are excluded.
- Staff working in long-term care homes are not captured in OLIS.
- City assignment in OLIS is based on the patient's health card address. Patients living in long-term care homes may not have the correct address associated with their health cards; therefore, not all tests in long-term care homes may be captured.
- Confirmed cases are those with a confirmed COVID-19 laboratory result as per the Ministry of Health Public health management of cases and contacts of COVID-19 in Ontario. March 25, 2020 version 6.0.
- The province has had to limit testing to priority groups in the early stages of the pandemic. Since only a small fraction of all the persons who were infected with the COVID-19 virus were tested, the number of reported confirmed community cases underestimates the actual number of infections. Information on overall infection rates in Canada will not be available until large studies on COVID-19 antibody presence in blood serum are conducted. Based on available information, the actual number of infections may lie from 5 to 30 times or more than the reported number of cases (1).
- Surveillance testing for COVID-19 began in long term care facilities on April 25, 2020.
Reference:
- Richterich P. Severe underestimation of COVID-19 case numbers: Effect of epidemic growth rate and test restrictions. medRxiv. April 2020: 2020.04.13. doi.org/10.1101/2020.04.13.20064220
Update Frequency: Thursdays
Attributes: Data fields:
- Date – date of the test (YYYY-MM-DD).
- Number of tests – number of Ottawa residents tested for COVID-19
- Daily % Positivity – number of Ottawa residents tested on that day that received a positive test result for COVID-19 divided by the total number of Ottawa residents tested on that day
- Number of tests in LTCH– number of Ottawa residents in long-term care homes who were tested for COVID-19
- LTCH Daily % Positivity – number of Ottawa residents in long-term care homes tested on that day that received a positive test result for COVID-19 divided by the total number of Ottawa residents in long-term care homes tested on that day
Contact: OPH Epidemiology Team | Epidemiology & Evidence, Ottawa Public Health
Datasets available for download
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Ottawa_Residents_TestedTable
Layer 0 via ArcGIS REST API
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Ottawa_Residents_Tested (Explore)HTML
Explore Ottawa_Residents_Tested on ArcGIS Hub
Additional Info
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| Last Updated | June 16, 2026, 17:25 (UTC) |
| Created | March 24, 2026, 20:40 (UTC) |
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Domain / Topic
Domain or topic of the dataset being cataloged.
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Title
Title for the Dataset.
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COVID-19 Ottawa Residents Tested |
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Description
A description of the dataset.
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Daily number of Ottawa residents tested for COVID-19 and the percentage of residents tested with laboratory-confirmed COVID-19. Daily number of Ottawa residents tested for COVID-19 and the percentage of residents tested with laboratory-confirmed COVID-19. Data are based on information extracted from the Ontario Laboratories Information System (OLIS) on Thursdays.
Reference:
Update Frequency: Thursdays
Contact: OPH Epidemiology Team | Epidemiology & Evidence, Ottawa Public Health |
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Tags / Keywords
Keywords/tags categorizing the dataset.
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Format (CSV, XLS, TXT, PDF, etc)
File format of the dataset.
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Dataset Size
Dataset size in megabytes.
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224.0 |
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Metadata Identifier
Metadata identifier – can be used as the unique identifier for catalogue entry
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Published Date
Published date of the dataset.
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2026-01-26 |
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Time Period Data Span (start date)
Start date of the data in the dataset.
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Time Period Data Span (end date)
End date of time data in the dataset.
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GeoSpatial Area Data Span
A spatial region or named place the dataset covers.
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Access category
Type of access granted for the dataset (open, closed, service, etc).
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public |
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License
License used to access the dataset.
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https://ottawa.ca/en/city-hall/get-know-your-city/open-data#open-data-licence-version-2-0 |
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Limits on use
Limits on use of data.
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Location
Location of the dataset.
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https://od-dev2-ottawa.opendata.arcgis.com/datasets/ottawa::covid-19-ottawa-residents-tested |
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Data Service
Data service for accessing a dataset.
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Owner
Owner of the dataset.
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[email protected] |
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Contact Point
Who to contact regarding access?
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City of Ottawa |
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Contact Point Email
The email to contact regarding access?
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[email protected] |
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Publisher
Publisher of the dataset.
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City of Ottawa |
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Publisher Email
Email of the publisher.
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Author
Author of the dataset.
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[email protected] |
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Author Email
Email of the author.
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Accessed At
Date the data and metadata was accessed.
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2026-05-04 |
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Identifier
Unique identifier for the dataset.
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f8ed76cfd2ca4a8796f3f30de501be7c |
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Language
Language(s) of the dataset
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English |
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Link to dataset description
A URL to an external document describing the dataset.
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https://od-dev2-ottawa.opendata.arcgis.com/datasets/ottawa::covid-19-ottawa-residents-tested |
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Persistent Identifier
Data is identified by a persistent identifier.
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Globally Unique Identifier
Data is identified by a persistent and globally unique identifier.
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Contains data about individuals
Does the data hold data about individuals?
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Contains data about identifiable individuals
Does the data hold identifiable data about individual?
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Contains Indigenous Data
Does the data hold data about Indigenous communities?
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Portal Type
Platform type of the source portal.
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Version
Version of the datatset
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None |
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Source
Source of the dataset.
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None |
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Version notes
Version notes about the dataset.
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Is version of another dataset
Link to dataset that it is a version of.
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Other versions
Link to datasets that are versions of it.
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Provenance Text
Provenance Text of the data.
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City of Ottawa |
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Provenance URL
Provenance URL of the data.
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Temporal resolution
Describes how granular the date/time data in the dataset is.
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GeoSpatial resolution in meters
Describes how granular (in meters) geospatial data is in the dataset.
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GeoSpatial resolution (in regions)
Describes how granular (in regions) geospatial data is in the dataset.
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Indigenous Community Permission
Who holds the Indigenous Community Permission. Who to contact regarding access to a dataset that has data about Indigenous communities.
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Community Permission
Community permission (who gave permission).
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The Indigenous communities the dataset is about
Indigenous communities from which data is derived.
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Number of data rows
If tabular dataset, total number of rows.
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2221 |
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Number of data columns
If tabular dataset, total number of unique columns.
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14 |
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Number of data cells
If tabular dataset, total number of cells with data.
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31094 |
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Number of data relations
If RDF dataset, total number of triples.
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Number of entities
If RDF dataset, total number of entities.
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Number of data properties
If RDF dataset, total number of unique properties used by the triples.
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Data quality
Describes the quality of the data in the dataset.
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Metric for data quality
A metric used to measure the quality of the data, such as missing values or invalid formats.
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