https://www.thailandmedical.news/news/great-news-preliminary-data-shows-that-sars-cov-2-ba-2-12-1-and-ba-4-variants-have-ro-of-15-similar-to-measles-and-also-unique-pathogenesis

April 15, 2022

Warning! More BA.2 subvariants with the concerning mutations L452Q that increases fusogenicity and infectivity are emerging and spreading globally!

https://www.thailandmedical.news/news/warning-more-ba-2-subvariants-with-the-concerning-mutations-l452q-or-l452r-that-increases-fusogenicity-and-infectivity-are-emerging-and-spreading-glob