Us Experts Say Principal Form Of Covid Spread Is Via The Air

Grant Boone
September 21, 2020

Previously, the said the federal health agency The virus is spread mainly among people who are about six meters away from each other and through the direct passage of exhaled droplets that land on the noses and mouths of people nearby.

Facing strong criticism, the U.S. Centers for Disease Control and Prevention on Friday reversed a prior COVID-19 guideline that had said that people who know they've been in close contact with an infected person but are asymptomatic do not have to get tested.

The updated CDC guidance about air transmission also comes days after the CDC's director, Dr. Robert Redfield, said masks could be even more helpful in combating the coronavirus than a vaccine.

Since July, the agency has flip-flopped on its guidance on testing people who don't show symptoms, finally settling on the recommendation that it's a good idea.

Airborne viruses are among the most contagious, and the CDC warned that poorly-ventilated places increase the risk of spreading. It still says coronavirus mostly spreads between people who are in close contact with each other.

The change should drive people to adopt concrete solutions to slowing airborne transmission, Jimenez said, such as wearing more tightly fitting masks, improving ventilation and keeping as much distance as possible from others when indoors.

The guidance said these particles could cause infection "when inhaled into the nose, mouth, airways, and lungs". "This is thought to be the main way the virus spreads", the agency says of its aerosols finding.

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The newspaper said the recommendation was posted to the Centres for Disease Control and Prevention's website "despite their serious objections", citing internal CDC documents and unnamed officials familiar with the issue.

Scientists have noted the likelihood of the transmission of coronavirus through viral particles in the air for months, pushing health agencies to acknowledge it.

It states that masks and other preventive measures should not be changed.

It also now says that people have to stay at home and be isolated if they are sick. Spread from touching surfaces is not thought to be the main way the virus spreads, clarified CDC.

Friday's reversal added more fodder to a snowballing story regarding political interference with the CDC.

Milton and Jimenez were amongst a group of scientists who prepared an open letter to the World Health Organization, eventually signed by 239 scientists from 32 nations, that prompted authorities to accept the possibility that aerosols play a significant function in spreading out the infection.

After the letter is published, The WHO released a statement Describes how the corona virus can travel from one person to another, through the air during certain medical procedures, including air in congested indoor spaces. "In these outbreaks, aerosol transmission, particularly in these indoor locations where there are crowded and inadequately ventilated spaces where infected persons spend long periods of time with others, can not be ruled out".

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