SeroTracker
SeroTracker is a dashboard with data from SARS-CoV-2 serosurveillance projects from around the world. A Canada-only dashboard is also available. Many countries have invested in serosurveys to understand the true extent of the pandemic, identify groups at risk, monitor vaccine-induced immunity, and chart an exit strategy from the pandemic.
How to use the dashboards
In the dashboards below, you can select and analyze the data to answer your own questions about the spread and impact of COVID-19. You can filter, group, and interrogate data based on the factors you are interested in, including country, population studied, study design, and test used. Links to sources and references are available for further exploration into the available literature.
Seroprevalence estimates from around the world
Seroprevalence estimates in Canada
This map shows the results from studies that have investigated levels of antibodies to SARS-CoV-2 in Canada. Studies shown can be at a local level (city), regional (province/territory or several cities), or national (across provinces and territories). The information shown when hovering over a dot shows the best estimate (from that study) of the proportion of people who have antibodies. The purpose of these serosurveys is to estimate how many people in cities, provinces, territories, and the entire country have some protection against SARS-CoV-2.
Learn more about seroprevalence estimates in Canada
This graph shows the dates and population for each study examining antibody levels in Canada. Percentages at the side of each bar indicate the proportion of people who were found to have antibodies to SARS-CoV-2 in that study. Hovering over each bar provides more details of the study.
This graph shows results by the type of population included in the study. Hovering over a box will show the median proportion of antibodies, as well as the minimum and maximum values found for each type of population. Each dot represents an estimate from a study; hence many dots may be from the same study, but each dot represents antibody levels in a specific subpopulation.
This graph shows studies by province or territory as well as national studies. Hovering over a box will show the median proportion of antibodies, as well as the minimum and maximum values found for each province or territory. Each dot represents an estimate from a study; hence many dots may be from the same study, but each dot represents antibody levels in a specific subpopulation. This graph allows the user to adjust the date range (when the study was conducted), risk of bias (how reliable the results are), type of population, and level at which the study was conducted (local, regional, national).
This graph shows studies that included the general population by study date and province. If studies repeated measurements at different time points, you can see how the proportion of people with antibodies changes over time.
About SeroTracker
SeroTracker is an interdisciplinary and international initiative, involving 30 researchers, developers, and data scientists affiliated with eight universities in Canada, the United States, and the United Kingdom. SeroTracker’s main partnership is with Canada’s COVID-19 Immunity Task Force (CITF), which gave initial funding to the initiative and provides extra guidance and expertise, as well as support for the maintenance of the dashboard. The SeroTracker team in turn serves the CITF’s need for global serological testing data and provides strategic support and research. Since its start in April 2020, SeroTracker has developed global partnerships with leading research institutes, governments, and nonprofit organizations. SeroTracker is working with the World Health Organization to visualize and synthesize results from the Unity Studies. SeroTracker is also collaborating with Germany’s Robert Koch Institute and other groups to use learnings from seroprevalence data to inform public health responses worldwide.