Weekly totals of variants in all locations (by specimen date)
Week 08 09 10 11 12 13 14 15
XFG 943 734 405 221 119 7
NB.1.8.1 477 385 295 153 52 12
BA.3.2 180 163 97 71 65 4
Total 1741 1404 865 514 262 29
XFG % 54% 52% 47% 43% 45% 24%
NB.1.8.1 % 27% 27% 34% 30% 20% 41%
BA.3.2 % 10% 12% 11% 14% 25% 14%

Last Updated: 7th April 2026 12:58 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.