Not so fast with the bivalvent booster concerns. A thread from @sailorrooscout
RT @DrEricDing: 📈Surging #BA5 & #BA4 variants in both US & England. It’s looking like #Ba5 is the new fastest strain—which has ~10x increased in England in 1 month. Also notice that older #Omicron #B11529/#BA1 are already near *extinct*. I worry the “new” Omicron BA1 bivalent vaccine is behind.

🐦🔗: https://nitter.eu/NChildersMEP/status/1534900207049113601