1/ How long do 2 doses of #COVID19 vaccines protect for? Who needs booster vaccinations?

Our team @phe_uk have just published a pre-print on vaccine effectiveness (VE) and duration of protection after 2 doses of Pfizer and AZ vaccines in adults … 🧵

👉 https://t.co/AnK7sazNA4

— Shamez Ladhani (@ShamezLadhani) September 14, 2021