| Weekly totals of variants in USA (by specimen date) | ||||||||
|---|---|---|---|---|---|---|---|---|
| Week | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 |
| NB.1.8.1 | 105 | 63 | 32 | 23 | 10 | 6 | – | – |
| XFG | 379 | 317 | 163 | 85 | 45 | 2 | – | – |
| BA.3.2 | 6 | 11 | 5 | 8 | 14 | – | – | – |
| Total | 542 | 433 | 217 | 125 | 74 | 8 | – | – |
| NB.1.8.1 % | 19% | 15% | 15% | 18% | 14% | 75% | – | – |
| XFG % | 70% | 73% | 75% | 68% | 61% | 25% | – | – |
| BA.3.2 % | 1% | 3% | 2% | 6% | 19% | 0% | – | – |
Last Updated: 7th April 2026 12:58 BST — 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.