Weekly totals of variants in Netherlands (by specimen date)
Week 44 45 46 47 48 49 50 51
NB.1.8.1 7 11 7 5 5 3
XFG 54 86 57 49 26 5
BA.3.2 1 1 4 10 8 4
Total 67 101 79 70 42 12
NB.1.8.1 % 10% 11% 9% 7% 12% 25%
XFG % 81% 85% 72% 70% 62% 42%
BA.3.2 % 1% 1% 5% 14% 19% 33%

Last Updated: 16th December 2025 07:27 GMT — 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.