The CDC quietly revised the coronavirus guidance again—this time for aerosol transmission by lisettevoytko
Before Friday’s update, the CDC said large respiratory droplets at close range transmitted the virus, but“There is growing evidence that droplets and airborne particles can remain suspended in the air and be breathed in by others, and travel distances beyond six feet,” the CDC now advises.
Poorly ventilated indoor spaces, like choir practices or fitness classes, can be particularly risky for virus transmission, the CDC’s guidance adds. Scientists say the new CDC guidance is important because cloth masks aren’t designed to protect the wearer from aerosols. The World Health Organization publicly addressed the threat of aerosols in July at the urging of hundreds of scientists, and according to the“This is a good thing, if we can reduce transmission because more people understand how it is spreading and know what to do to stop it,” University of Boulder-Colorado chemistry professor Jose-Luis Jimenez told the“I have yet to see any major public health comms campaigns talk about when six feet apart is not enough, the need for better ventilation, or the...
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