Important Hong Kong study—they can measure true vaccine efficacy since no prior outbreak, hence no population immunity to confound the analyses like everywhere else.
— zeynep tufekci (@zeynep) July 17, 2022
"Three doses.. offered very high levels of protection against severe or fatal outcomes (97·9% [97·3–98·4])."
🧵 https://t.co/qpHPaTgoAh pic.twitter.com/q9hlALGEY6