Things I wish everyone knew and acted on: 1. Masks reduce spread (this study) 2. Covid-19 is an airborne disease and primarily spread through aerosols 3. Bei

Things I wish everyone knew and acted on: 1. Masks reduce spread (this study) 2. Covid-19 is an airborne disease and primarily spread through aerosols 3. Being in a poorly ventilated space (even if everyone is masked) with an infected person means a significant chance of being infected. 4. While (1) is true for even meh-masks, to prevent infection in (3), you need to be wearing a tight-fitting high quality mask. No beards, no cloth, no surgical. N-95 or better with total seal.