Weekly totals of variants in Australia (by specimen date)
Week 08 09 10 11 12 13 14 15
NB.1.8.1 34 46 27 19 6
XFG 23 25 22 25 3 1
BA.3.2 47 42 24 14 12
Total 116 130 84 83 22 1
NB.1.8.1 % 29% 35% 32% 23% 27% 0%
XFG % 20% 19% 26% 30% 14% 100%
BA.3.2 % 41% 32% 29% 17% 55% 0%

Last Updated: 7th April 2026 12:58 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.