Many on Twitter have asked--how did I go from being extremely cautious with #covid19 precautions for nearly two years to now resuming pre-pandemic activities, including not masking my young kids at school?

I explain in this @postopinions column 🧵: https://t.co/3UGUxWvCH7

— Leana Wen, M.D. (@DrLeanaWen) August 23, 2022