Correction to: Nature https://doi.org/10.1038/s41586-021-03291-yPublished online 5 February 2021

In the version of this article initially published, the surname of a member of The COVID-19 Genomics UK (COG-UK) Consortium was misspelt as Gramatopoulos. The correct spelling is Dimitris Grammatopoulos. The name has been corrected in the HTML and PDF versions of the article.