Weekly totals of variants in Germany (by specimen date)
Week 34 35 36 37 38 39 40 41
XFZ.4.1 1 – – 4 3 – – –
Total 4 5 11 12 14 2 – –
XFZ.4.1 % 25% 0% 0% 33% 21% 0% – –

Last Updated: 7th October 2026 21:12 BST — Local: …

Growth Charts

Growth chart for XFZ.4.1

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.