Commentaries on Twitter (thread – click for more)
This is arguably the most important single piece of epidemiological research of the entire pandemic.
A MASSIVE randomized trial launched a pro-mask campaign in some Bangladeshi villages, but not others.
The result: masking villages got less COVID. https://t.co/8uKPXAvvnU
— Lyman Stone 石來民 🦬🦬🦬 (@lymanstoneky) September 1, 2021
(thread from the author – click for more)
— Ahmed Mushfiq Mobarak (@mushfiq_econ) September 2, 2021