| Weekly totals of variants in USA (by specimen date) | ||||||||
|---|---|---|---|---|---|---|---|---|
| Week | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 |
| XDV.1 | 27 | 19 | 18 | 9 | 5 | 5 | 1 | – |
| Total | 278 | 251 | 205 | 124 | 62 | 35 | 8 | – |
| XDV.1 % | 10% | 8% | 9% | 7% | 8% | 14% | 13% | – |
Last Updated: 16th December 2025 16:27 GMT — Local: …
Growth Charts
Acknowledgements
We gratefully acknowledge GISAID and the many data contributors around the world for sharing SARS-CoV-2 sequences.
This analysis makes use of the
Nextclade CLI.
Aksamentov, I., Roemer, C., Hodcroft, E. B., & Neher, R. A., (2021). Nextclade: clade assignment, mutation calling and quality control for viral genomes. Journal of Open Source Software, 6(67), 3773, https://doi.org/10.21105/joss.03773
Special thanks to Josette Schoenmakers ( @josetteschoenma.bsky.social on BlueSky @JosetteSchoenma on Twitter) for the table concepts.