We gratefully acknowledge all data contributors, that is, the authors and their originating laboratories responsible for obtaining the specimens, and their submitting laboratories for generating the genetic sequence and metadata and sharing via the GISAID Initiative, on which this study is based. We would like to thank Florence Débarre for comments on an earlier draft. We acknowledge the support of the Natural Sciences and Engineering Research Council of Canada (NSERC RGPIN-2022-03726).
