Weekly totals of variants in Netherlands (by specimen date)
Week 11 12 13 14 15 16 17 18
NB.1.8.1 1 2 2
XFG 7 1 2 4 3
BA.3.2 4 2 3 1
Total 8 8 4 7 6
NB.1.8.1 % 13% 25% 0% 0% 33%
XFG % 88% 13% 50% 57% 50%
BA.3.2 % 0% 50% 50% 43% 17%

Last Updated: 27th April 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.