Yep, this is why I will continue to wear a mask when indoors with other people. Masking, distancing, hand washing, and isolation when sick; simple behavioral changes that have already made two strains of influenza go extinct.
What was the second strain?
Thanks for asking. I was using incorrect terminology. It’s the Influenza B/Yamagata lineage which has probably gone extinct. According to this paper in The Lancet : https://www.thelancet.com/journals/lanmic/article/PIIS2666-5247(24)00066-1/fulltext
The B/Victoria lineage persists. B/Yamagata has not been confirmed since March 2020 according to this paper : https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9524051/
This paper from Nature goes into it a bit more, in particular wrt implications for vaccines: https://www.nature.com/articles/s41579-021-00642-4
Sweet, good followup. I was only aware of Yamagata