RT @tomaspueyo: If you just go to these primary studies, you realize NONE of them support the conclusion of the meta-analysis. Brutal.
If you adjust the math accordingly, you find that there's just 2 relevant studies (Bangladesh and Denmark), and both say: MASKS WORK
🐦🔗: https://n.respublicae.eu/lugaricano/status/1630230663000469509