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Health & Fit CDC Says Virus Can Spread Indoors in Air Beyond Six Feet

02:35  06 october  2020
02:35  06 october  2020 Source:   msn.com

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That's what the US Centers for Disease Control and Prevention had said in updated guidance posted on its website on Friday, in line with findings from studies around the The CDC had said the virus ' can remain suspended in the air ' and 'travel distances beyond 6 feet ,' but the guidance was pulled.

The U.S. Centers for Disease Control and Prevention warned that Covid-19 could spread through airborne particles that can remain suspended in the air and travel beyond six feet , but walked The agency previously said the virus mainly spreads from person to person through respiratory droplets

(Bloomberg) -- The novel coronavirus can spread through the air to people who are more than 6 feet away from an infectious person, the U.S. Centers for Disease Control and Prevention said on Monday, in guidance that could raise new challenges for safely re-opening businesses and schools.

a hand holding a blue umbrella: A One Medical Group Inc. nurse practitioner places a swab inside a test tube after swabbing a patient at a Covid-19 testing center at Medgar Evers Collage in the Brooklyn borough of New York. © Bloomberg A One Medical Group Inc. nurse practitioner places a swab inside a test tube after swabbing a patient at a Covid-19 testing center at Medgar Evers Collage in the Brooklyn borough of New York.

In an update to its website, the CDC said the coronavirus can sometimes be spread through small particles that can linger in the air and infect people separated by distances previously considered safe. Many social-distancing guidelines adopted by workplaces, restaurants and stores advise people to stand at least 6 feet (1.8 meters) apart to avoid transmitting the pathogen that causes Covid-19.

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The US Centers for Disease Control and Prevention has pulled its updated guidance that the coronavirus is airborne and can travel distances beyond 6 feet – saying a The CDC had said for months that the disease is mainly transmitted between people in close proximity through large droplets.

In a move praised by aerosol experts Monday, the Centers for Disease Control and Prevention posted an update to its COVID-19 page seeming to acknowledge that the virus can spread And the CDC had added that air purifiers could be used as a new way to protect yourself indoors , CNN reports.

“Today’s update acknowledges the existence of some published reports showing limited, uncommon circumstances where people with Covid-19 infected others who were more than 6 feet away or shortly after the Covid-19-positive person left an area,” the agency said in a news release.

The change follows months of mounting scientific evidence that Sars-CoV-2 can be transmitted through the air at greater distances than understood in earlier stages of the pandemic. There have been indications the CDC was moving toward updating its guidance. Last month, it posted and then removed a guideline on airborne transmission, later describing it as a draft posted in error.

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The US Centers for Disease Control and Prevention updated guidance on its website to say coronavirus can commonly spread "through respiratory droplets or small particles, such as those in aerosols," which are Updated CDC guidance acknowledges coronavirus can spread through the air .

The CDC says the coronavirus can travel through the air and infect others, especially in poorly ventilated spaces. The Centers for Disease Control and Prevention updated its website to say that the coronavirus can sometimes spread farther than six feet through tiny, airborne particles.

The new guidance arrives as the pandemic appears to be shifting into a more intense phase in the U.S. In 34 states, the seven-day average of new cases is higher than it was a month ago, and an outbreak of the virus at the White House appears to be widening. At the same time, schools are reopening, states such as Florida have lifted restrictions on restaurants and other businesses, and the approach of cooler weather and holidays is expected to push more people indoors to socialize.

Ventilation Issues

A recent archived version of the CDC’s web page made no mention of airborne transmission, emphasizing that the main way the virus spreads is through close contact among people who are within six feet of each other, through respiratory droplets emitted by coughing, sneezing, and speaking. It acknowledged that the virus may spread in other ways, including on contaminated surfaces.

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The CDC has previously said the virus mainly spreads from person to person through respiratory droplets when a sick person coughs, sneezes or talks. The WHO’s Ryan said the agency still believes the disease is primarily spread through droplets, but that in crowded closed spaces with inadequate

The Centers for Disease Control and Prevention said Monday it erroneously posted guidance saying the coronavirus spreads through airborne particles that can remain suspended in the air and travel beyond 6 feet . The updated guidance, posted on the CDC's website on Friday, also recommended

The CDC’s updated site includes a section acknowledging that virus particles also sometimes spread through the air, particularly in enclosed spaces with poor ventilation. Scientists believe that in these cases, airborne virus particles emitted “became concentrated enough to spread the virus to other people,” including sometimes shortly after the infectious person left.

The transmissions sometimes occurred when the infected person was breathing heavily, while singing or exercising, the agency said.


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a person standing in front of a window: Woman wearing mask opening the door with the elbow for protection infection COVID-19

Linsey Marr, an expert on the airborne transmission of viruses at Virginia Tech, in a tweet called the update “an accurate, sorely-needed update acknowledging airborne spread and importance of masks at all times around others and of ventilation.”

In an open letter in July, 239 scientists urged the World Health Organization to recognize the potential for airborne spread. One study of a meat plant suggested that under certain conditions the virus can travel 26 feet.

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The CDC has consistently maintained talking with someone, especially within six feet for 15 minutes or more, could easily lead to transmission of the virus . And the CDC had added that air purifiers could be used as a new way to protect yourself indoors , CNN reports. That guidance is also no longer on

Coronavirus spreads more easily than first thought. He said WHO is worried about giving advice that people, especially health care workers in low-resource settings, cannot follow. • Provide sufficient and effective ventilation (supply clean outdoor air , minimize recirculating air ) particularly in public buildings

Recommendations Unchanged

In a Senate hearing last month, CDC Director Robert Redfield acknowledged there was evidence of airborne spread, but said the CDC document that was removed hadn’t been cleared for publication by agency staff.

“I just want to stress for the American public and for everyone here that that document that went up was a draft, had not been technically reviewed by CDC,” Redfield said on Sept. 23. He said the agency reverted to the one that had been reviewed.

The CDC Monday reiterated that it’s more common for the virus to spread through close contact with an infected person. The update doesn’t change the CDC’s recommendations for how to protect against infection by wearing masks, staying 6 feet apart, washing hands, cleaning surfaces, and staying home when sick.

“CDC’s recommendations remain the same based on existing science and after a thorough technical review of the guidance,” the agency said in news release sent to reporters Monday.

It’s unusual for the CDC to alert the media to changes in its guidelines, with updates frequently published to the agency’s website with little fanfare.

The agency didn’t immediately respond to an emailed question about whether the acknowledgment would lead to changes in guidance for restaurants, businesses, and other settings.

(Updates with additional background on earlier changes to the document in final section. A previous version of this story corrected the spelling of a name in 10th paragraph.)

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©2020 Bloomberg L.P.

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usr: 1
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