Weekly totals of variants in Canada (by specimen date)
Week 16 17 18 19 20 21 22 23
NB.1.8.1 148 89 28 29 17
XFG 49 28 25 21 13
BA.3.2 11 7 5 2 2 3
Total 221 131 63 54 33 3
NB.1.8.1 % 67% 68% 44% 54% 52% 0%
XFG % 22% 21% 40% 39% 39% 0%
BA.3.2 % 5% 5% 8% 4% 6% 100%

Last Updated: 7th June 2026 18:58 BST — Local:

Growth Charts

Growth chart for NB.1.8.1
Growth chart for XFG
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.