Weekly totals of variants in all locations (by specimen date)
Week 28 29 30 31 32 33 34 35
XFG 145 140 113 59 26 10 10
NB.1.8.1 194 217 218 145 93 19 1
BA.3.2 38 37 36 19 19 3
Total 507 503 470 291 168 41 20
XFG % 29% 28% 24% 20% 15% 24% 50%
NB.1.8.1 % 38% 43% 46% 50% 55% 46% 5%
BA.3.2 % 7% 7% 8% 7% 11% 7% 0%

Last Updated: 29th August 2026 21:58 BST — Local:

Growth Charts

Growth chart for XFG
Growth chart for NB.1.8.1
Growth chart for BA.3.2

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.