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This is a Nextstrain build for novel coronavirus, alternately known as hCoV-19 or SARS-CoV-2 that is responsible for the COVID-19 pandemic. This build is visible at nextstrain.org/ncov.

The hCoV-19 / SARS-CoV-2 genomes were generously shared via GISAID. We gratefully acknowledge the Authors, Originating and Submitting laboratories of the genetic sequence and metadata made available through GISAID on which this research is based. For a full list of attributions please see the metadata file.

Site numbering and genome structure uses Wuhan-Hu-1/2019 as reference. The phylogeny is rooted relative to early samples from Wuhan. Temporal resolution assumes a nucleotide substitution rate of 8 × 10^-4 subs per site per year. There were SNPs present in the nCoV samples in the first and last few bases of the alignment that were masked as likely sequencing artifacts.

If you'd like to customize and run the analysis yourself, please see the developer docs.

We welcome contributions from the community! Please note that we strictly adhere to the Contributor Covenant Code of Conduct.

Please see the translations repo to get started!

Please see our Contributor Guide to get started!

Please note that we automatically pick up any hCoV-19 data that is submitted to GISAID.

If you're a lab and you'd like to get started sequencing, please see:

• Protocols from the ARTIC network
• Funding opportunities for sequencing efforts
• Or, if these don't meet your needs, get in touch