So many COVID threads not sure whereto put this one.
https://twitter.com/Jabaluck/status/1433036923610742789
Study that masks due in fact help and that surgical masks were more effective than cloth masks but that both reduced transmission rates.
I’ll see if I can find the actual study and not just the twitter feed with some highlights.
This was a longer article linked within the twitter thread. The Impact of Mask Distribution and Promotion on Mask Uptake and COVID-19 in Bangladesh | IPA
And the full paper can be found here https://www.poverty-action.org/sites/default/files/publications/Mask_RCT____Symptomatic_Seropositivity_083121.pdf