Dr. Ali Nouri Profile picture
Teaching @Princeton. Fmr Deputy Director @WhiteHouse; Fmr Assistant Secretary @Energy; Fmr President @Scientistsorg. Tweeting about Science and Technology.

Sep 21, 2020, 5 tweets

CDC: the coronavirus is airborne.

CDC finally acknowledged what scientists have been saying for months:

The virus isn't just spreading through large repiratory droplets that fall under gravity (6ft rule) but on small ones too that can travel farther. 1/3
newsweek.com/cdc-coronaviru…

This highlights the need for ventilation, in addition to masks, physical distancing, and hygiene. There are numerous examples of longer-distance aerosol transmission in indoor spaces. A few examples here: 2/3

This has been the defacto view in many countries. The Feb 3rd scientific study that characterized the virus even says "we propose that the disease could be transmitted by airborne transmission.."

The question is why it took us so long to accept it. 3/3
nature.com/articles/s4158…

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