Chris Hayes @chrislhayes
RT @DKThomp: Brilliant randomized study, funded by Give Well, on mask effectiveness in Bangladesh. Some takeaways: 1. **Masks work** to re… — PolitiTweet.org
Lyman Stone 石來民 🦬🦬🦬 @lymanstoneky
This is arguably the most important single piece of epidemiological research of the entire pandemic. A MASSIVE ran… https://t.co/UEAuOMbEh3