Weekly totals of variants in all locations (by specimen date)
Week 16 17 18 19 20 21 22 23 24 25 26 27 28
RF.5.1 2 20 14 15 18 13 12 12 17 4 2 2
Total 802 553 544 464 474 448 407 361 345 330 213 167 104
RF.5.1 % 0% 0% 4% 3% 3% 4% 3% 3% 3% 5% 2% 1% 2%

Last Updated: 25th July 2026 21:58 BST — Local:

Growth Charts

Growth chart for RF.5.1

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.