Citing 'current evidence,' the WHO says the coronavirus doesn't seem to linger in the air. But at least one expert in virus transmission argues it's way too soon to know — and that it's 'dangerous' to say otherwise.
the virus that causes COVID-19 doesn't seem to linger in the air or be capable of spreading through the air over distances more than about three feet."I think the WHO is being irresponsible in giving out that information. This misinformation is dangerous," says Dr., an infectious disease aerobiologist at the University of Maryland School of Public Health.
Other viruses, however, get shed by infected people in a way that lets the germs actually hang suspended in the air for minutes or even hours. Later, these airborne viruses can get breathed in when other people pass by. Measles is a good example of that kind of transmission—the Centers for Disease Control and Preventionthat"Measles virus can remain infectious in the air for up to two hours after an infected person leaves an area.
That troubles Milton, who says so little is known about this new virus, SARS-CoV-2, that it's inappropriate to draw conclusions about how it is transmitted.He says people like to think that there's some sharp, black-and-white distinction between"airborne" viruses that can linger and float in the air, and ones that only spread when embedded in larger moist droplets picked up through close contact, but the reality of transmission is far more nuanced.
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