Weekly totals of variants in Australia (by specimen date)
Week 31 32 33 34 35 36 37 38
NB.1.8.1 40 33 29 41 14
XFG 8 4 3 2
BA.3.2 10 4 2 7 4
Total 68 45 37 56 18
NB.1.8.1 % 59% 73% 78% 73% 78%
XFG % 12% 9% 8% 4% 0%
BA.3.2 % 15% 9% 5% 13% 22%

Last Updated: 8th September 2026 15:58 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.