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Centers For Disease Control And Prevention Says Coronavirus Can Spread Indoors In Updated Guidance

The Centers for Disease Control and Prevention had earlier said that the coronavirus spreads mainly through small airborne droplets when an infected person coughs or sneezes

Centers For Disease Control And Prevention Says Coronavirus Can Spread Indoors In Updated Guidance
Highlights
  • The virus is traveling through the air and there is no bright line: CDC
  • The virus spread occurs in poorly ventilated and enclosed spaces: CDC
  • People with COVID-19 can infect other shortly after leaving that area: CDC

New York: The top US public health agency said Monday that the coronavirus can spread more than 6 feet through the air, especially in poorly ventilated and enclosed spaces. But agency officials maintained that such spread is uncommon and current social distancing guidelines still make sense. However, several experts faulted the updated Centers for Disease Control and Prevention guidance. They said the virus can spread more easily than the CDC seems to be indicating, and suggested that the public should wear masks even in prolonged outdoor gatherings when they are more than 6 feet apart.

Also Read: Union Health Minister Releases COVID-19 Management Protocol Based On Ayurveda And Yoga

The virus “is travelling through the air and there is no bright line. You’re not safe beyond 6 feet. You can’t take your mask off at 6 feet,” said Dr. Donald Milton of the University Of Maryland School Of Public Health.

For months, the CDC has said that the virus spreads mainly through small airborne droplets when an infected person coughs or sneezes. Most CDC guidance about social distancing is built around that idea, saying that 6 feet is a safe buffer between people who are not wearing masks.

In interviews, CDC officials have also acknowledged growing evidence that the virus can sometimes spread on even smaller particles called aerosols that spread over a wider area. In the update posted on its website, the agency again acknowledged recent research showing people with COVID-19 infected others who were more than 6 feet away or shortly after an infected person left an area.

Also Read: Centre’s Standard Operating Procedures For Cinema Halls Allow 50 Per Cent Seating, Only Packed Food

CDC officials called those “limited, uncommon circumstances”. In those cases, spread occurred in poorly ventilated and enclosed spaces where people were doing activities that caused heavier breathing, like singing or exercise, CDC officials said. People can protect themselves by staying at least 6 feet away from others, wearing a mask, washing their hands, cleaning touched surfaces and staying home when sick Last month, the CDC ignited controversy among experts when it quietly posted an update that seemed to suggest the agency’s position had changed, and then within days took it down again.

The short-lived post said the virus can remain suspended in the air and drift more than 6 feet, and officials emphasized the importance of indoor ventilation. It also added singing and breathing to the ways the virus can go airborne. Federal health officials later said the post was a mistake and that it had been released before full editing and clearance was completed. They said there was no major change in the agency’s position, but they would finalize a post to clarify the CDC’s thinking. That’s what was posted Monday.

A small group of researchers — including Milton — on Monday published a letter in the journal Science that called for clearer public health guidance about how coronavirus spreads in the air. They said health officials need to use clearer language in talking about the size of airborne particles and droplets that can spread the disease, and be more straightforward about the role that viruses in small aerosols can play in infecting people. Masks and good ventilation are crucial indoors. But they can be important outdoors too, said Linsey Marr of Virginia Tech.

Also Read: 10 Per Cent Of World’s People May Have Been Infected With Virus, Says World Health Organisation

(Except for the headline, this story has not been edited by NDTV staff and is published from a syndicated feed.)

NDTV – Dettol Banega Swasth India campaign is an extension of the five-year-old Banega Swachh India initiative helmed by Campaign Ambassador Amitabh Bachchan. It aims to spread awareness about critical health issues facing the country. In wake of the current COVID-19 pandemic, the need for WASH (WaterSanitation and Hygiene) is reaffirmed as handwashing is one of the ways to prevent Coronavirus infection and other diseases. The campaign highlights the importance of nutrition and healthcare for women and children to prevent maternal and child mortality, fight malnutrition, stunting, wasting, anaemia and disease prevention through vaccines. Importance of programmes like Public Distribution System (PDS), Mid-day Meal Scheme, POSHAN Abhiyan and the role of Aganwadis and ASHA workers are also covered. Only a Swachh or clean India where toilets are used and open defecation free (ODF) status achieved as part of the Swachh Bharat Abhiyan launched by Prime Minister Narendra Modi in 2014, can eradicate diseases like diahorrea and become a Swasth or healthy India. The campaign will continue to cover issues like air pollutionwaste managementplastic banmanual scavenging and sanitation workers and menstrual hygiene

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