The site now says that “airborne viruses, including COVID-19, are the most contagious and easily spread.”
Earlier, the CDC page stated that Kovid-19 is mainly transmitted by people in close contact – about 6 feet – and “through respiratory drops produced when an infected person coughs, sneezes or talks.”
“These particles can cause infections when inhaled in the nose, mouth, airways and lungs,” he says. “This is thought to be the main way the virus has spread.”
“There is evidence that drops and airborne particles can remain suspended in the air and be inhaled by others, and travel more than 6 feet (for example, during singing practice, in restaurants or in fitness classes),” now the page says. Is. “In general, indoor environments without good ventilation increase this risk.”
The CDC also added new measures to information about protecting yourself and others.
Previously, the CDC suggested maintaining a “good social distance” of about 6 feet, washing hands, cleaning and disinfecting surfaces regularly, and covering your mouth and nose with a mask when around others.
Now, he says, “when possible, stay at least 6 feet away from others” and continue to direct people to wear masks and clean and disinfect regularly. However, he now says that people should stay home and be isolated when they are sick, and “use air purifiers to help reduce aerated insects in indoor spaces.”
The mask, he notes, should not replace other preventive measures.
The update also changed the language surrounding asymptomatic transmissions, migrating by saying “some people without symptoms can spread the virus”, “people who are infected but do not show symptoms can spread the virus to others.”
Scientists push for acceptance of airborne transmission
For months, scientists have noted the possibility of coronavirus transmission through viral particles into the air, forcing health agencies to accept it.
In April, a reputable scientific panel said in a letter to the White House that research showed that coronavirus could be spread not only by sneezing or coughing, but also by talking or possibly. Also spread in breathing.
“When the current [coronavirus] Specific research is limited, the results of the available study are consistent with the er resolutization of the virus from normal breathing, “according to a letter written by Dr. Harvey Finberg, former dean of the Harvard School of Public Health and chairman of the NAS Standing Committee, on emerging infectious diseases and 21st century health.
“Currently available research supports the possibility [coronavirus] The letter states that patients’ breaths are transmitted through bioaerosols produced directly from the mouth.
“The current guidance from a number of international and national organizations focuses on hand washing, maintaining social distance, and drip precautions,” the scientists wrote in a letter published in the Journal of Clinical Infectious Diseases.
“Most public health organizations, including the World Health Organization, do not recognize airborne transmission except in aerosol-producing procedures performed in healthcare settings. Hand washing and social distance are appropriate, but in our view, there is insufficient to protect infected people from respiratory infections. Released into the air, “they added.
On Sunday, Donald Milton, a professor of environmental health at the University of Maryland, one of the lead authors of the letter, who studies how the virus is transmitted, said there was “a big improvement” in the CDC’s new language.
“I’m very encouraged to see the CDC paying attention and moving forward with science. Evidence is gathering,” Milton wrote in an email to CNN.
“It’s time for the WHO to embrace these advances in science,” Milton said.
CNN’s Maggie Fox, Elizabeth Cohen, Jacqueline Howard and Jamie Gumbrech contributed to the report.
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