Covid 19 is airborne say 239 scientists
1) virus is airborne. Meaning it can linger in air indoors, but will rapidly be diluted outdoors or if there is fresh air circulating.
2) aerosols are droplets. The only difference is size—which determines how much virus they contain, how heavy they are and so how far and how long they travel in the air before falling down.
3. Aerosol transmission may not be the main mode—probably isn’t in fact—and that may still be droplets from sick oeople sneezing/coughing etc. BUT... and this is important. Aerosol transmission can happen and not just after certain medical procedures
4. There have been enough instances now where aerosol transmission seems like the most likely explanation for infections. Given that, people should take precautions indoors.
5. What precautions? Outdoors is good. Fresh air is good. Open windows and doors are good. Failing that, minimize time indoors with people who could be infected, wear a mask. And buildings consider ventilation and UV filters. more