Long thread warning California.

Unvaccinated adolescents have been the driving force behind a stubbornly persistent Delta surge in Britain, a potential warning sign for California if inoculation rates don’t improve considerably among this age group, health experts warn.https://t.co/DDNP61YGMi pic.twitter.com/XBcbCwR8Fd

— Los Angeles Times (@latimes) November 14, 2021