These 239 experts want the WHO and CDC to be more up-front about the potential airborne transmission of Covid-19. “[Health agencies] don’t want to talk about airborne transmission because that is going to make people afraid,” one of the experts says.
Imagine a noisy, crowded bar. Music is pounding, and people are clustered close together, talking loudly or even shouting to be heard. If it's cold out, doors and windows are shut tight and the heat is on, or if it's hot out, everything is shut and the air conditioner is recirculating the air.
This, in Donald Milton's opinion, is the perfect situation for spreading coronavirus.Not only could people pass the virus directly from one to another in the little droplets that we all spray to one degree or another when we talk, laugh or sing; but those little droplets also go up into the air where, Milton says, they can float around for at least some time.
In buildings, carbon dioxide monitors can help managers know if the air is being refreshed properly, Milton said. Outdoors in an urban area, he said, carbon dioxide levels are about 350 parts per million in the air. Exhaled breath carries about 38,000 parts per million of carbon dioxide. Indoors, he said, if the air has 1,000 parts per million carbon dioxide content or less,"that's pretty good," Milton said.
France Dernières Nouvelles, France Actualités
Similar News:Vous pouvez également lire des articles d'actualité similaires à celui-ci que nous avons collectés auprès d'autres sources d'information.
Florida reports record number of coronavirus cases amid nationwide surgeHealth experts fear coronavirus cases will continue to climb after the July 4 weekend.
Lire la suite »
The U.S. needs a unified approach to tackle rising coronavirus cases, infectious disease expert saysOver the Fourth of July holiday weekend, Florida and Texas faced a surge of cases, leaving state and local governments struggling to gain the upper hand in containment efforts.
Lire la suite »
Coronavirus updates: US reports over 49,000 new cases in a single dayCORONAVIRUS LATEST: • More than 49,000 new cases of COVID-19 were identified in the United States on Sunday. • Pandemic has killed over 534,000 people across the globe. • Over 11.4 million people have been diagnosed with COVID-19.
Lire la suite »
Coronavirus updates: Over two-thirds of Georgia Tech faculty protest plans to reopenThe NHL and NHLPA have finalized the protocols for the season to resume this summer in Toronto and Edmonton, Alberta, NHL deputy commissioner Bill Daly tells ESPN.
Lire la suite »
Faces of some of the more than 125,000 lives lost in US to coronavirusMore than 125,000 people have now died from the coronavirus pandemic in the U.S.
Lire la suite »
U.S. CDC reports 2,785,023 coronavirus cases, 129,397 deathsThe U.S. Centers for Disease Control and Prevention (CDC) on Saturday reported 2,785,023 cases of new coronavirus, an increase of 52,492 cases from its previous count, and said that the number of deaths had risen by 749 to 129,397.
Lire la suite »