Phylogenetic Analysis of SARS-CoV-2 in Ontario

Genome sequencing, analysis and epidemiology of SARS-CoV-2 is important for understanding the evolution and spread of SARS-CoV-2 in Ontario. This interactive tool supports genomics researchers and experts, epidemiologists, virologists and public health experts explore the evolutionary relationships between SARS-CoV-2 sequences and view the genetic diversity across the entire genome.

Data in the tool can be filtered by:
  • Ontario Health Region
  • Pango lineages, including variants of concern lineages
  • age group
  • sex
  • genotype
  • country
  • Clades: Nextstrain and GISAID

This image shows a phylogenic (evolutionary) tree and a map of SARS-CoV-2 sequences in Ontario. It is a screen shot from the Nextstrain tool to show an example of what the tool looks like.

View Phylogenetic Analysis of SARS-CoV-2 in Ontario

The data in this tool includes SARS-CoV-2 samples sequenced at Public Health Ontario and does not include samples sequenced at other laboratories at this time. 

The tool is updated Thursday between 4 and 6 p.m. ET and may be unavailable at this time. View the Technical Notes for more information on what is included in the tool.

The tool is best viewed using Google Chrome, Mozilla Firefox and Microsoft Edge.


This interactive tool uses the open source platform Nextstrain, which provides powerful analytic and visualization tools to support genomic analysis of pathogens like SARS-CoV-2.

To learn more about Nextstrain or support using and interpreting data in the tool, visit the Nextstrain documentation webpage for a variety of resources, tutorials and user-guides.


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Updated 3 Aug 2023