Around the world, people are sequencing and sharing SARS-CoV-2 genomic data. The Nextstrain team analyzes these data on a global and continental level. More specific analysis are often performed by groups around the world. This page lists publicly available SARS-CoV-2 analyses that use Nextstrain from groups all over the world. In addition to exploring SARS-CoV-2 evolution in finished analyses, you can use our new Nextclade tool to compare your sequences to the SARS-CoV-2 reference sequence, assign them to clades, and see where they fall on a the SARS-CoV-2 tree.
- Latest global SARS-CoV-2 analysis
- Scroll down to all available builds (datasets)
- Scroll down to all available interactive situation reports
- Nextclade (sequence analysis webapp)Drag and drop your sequences to assign them to clades and report potential sequence quality issues. You can use the tool to analyze sequences before you upload them to a database.
- CoVariants (mutations and variants of interest)An overview of SARS-CoV-2 mutations that are of interest. The featured mutations are currently mostly associated with spread in Europe; this is simply a reflection that the primary maintainer/author (Emma Hodcroft) works mostly with European data.
- Search builds by strain name(s)Search all SARS-CoV-2 nextstrain builds, including historical ones, for particular strain name(s)
- Phylogeny of SARS-like betacoronavirusesWe also have a more general phylogeny of betacoronaviruses.
- How to run your own phylogenetic analysis of SARS-CoV-2A tutorial walking through running your own analysis using Nextstrain tools
- Nextstrain discussion forumSee here for previously asked questions about Nextstrain or ask your own
- Developer contributionsWe have received a number of generous offers to contribute to the development of Nextstrain - this provides an entry point for how you may be able help
This section is an index of public Nextstrain builds (datasets) for SARS-CoV-2, organized by geography. Some of these builds are maintained by the Nextstrain team and others are maintained by independent research groups. See here for more information on what a build is, and see this tutorial for a walkthrough of running your own phylogenetic analysis of SARS-CoV-2 data. If you know of a build not listed here, please let us know! Please note that inclusion on this list does not indicate an endorsement by the Nextstrain team.
We have been writing interactive situation reports using Nextstrain Narratives to communicate how COVID-19 is moving around the world and spreading locally. These are kindly translated into a number of different languages by volunteers and Google-provided translators — click on any language below to see the list of situation reports available.
This work is made possible by the open sharing of genetic data by research groups from all over the world. We gratefully acknowledge their contributions. Special thanks to Kristian Andersen, Josh Batson, David Blazes, Jesse Bloom, Peter Bogner, Anderson Brito, Matt Cotten, Ana Crisan, Tulio de Oliveira, Gytis Dudas, Vivien Dugan, Karl Erlandson, Nuno Faria, Jennifer Gardy, Nate Grubaugh, Becky Kondor, Dylan George, Ian Goodfellow, Betz Halloran, Christian Happi, Jeff Joy, Paul Kellam, Philippe Lemey, Nick Loman, Duncan MacCannell, Erick Matsen, Sebastian Maurer-Stroh, Placide Mbala, Danny Park, Oliver Pybus, Andrew Rambaut, Colin Russell, Pardis Sabeti, Katherine Siddle, Kristof Theys, Dave Wentworth, Shirlee Wohl and Cecile Viboud for comments, suggestions and data sharing.