On Monday, the US Centers for Disease Control and Prevention said: "The new coronavirus can be spread through the air to people who are more than 1.8 meters away from an infected person."
In an update on its official website, the CDC (Centers for Disease Control and Prevention) said that the coronavirus can sometimes spread through small particles, which can stay in the air and infect humans. distanced, previously considered safe.
Many social distance guidelines approved by workplaces, restaurants and shops advise people to stay at least 1.8 meters away, to avoid transmitting the pathogen that causes Covid-19.
"Today's update shows the existence of several published reports showing a range of limited and unusual circumstances in which people with Covid-19 can infect others," the agency said in a news release.
Last month, the CDC posted and subsequently removed an instruction on airborne transmission, later describing it as a draft posted incorrectly.
Meanwhile, a recent archived version of the CDC website did not mention airborne transmission, noting that the main way the virus is spread is through close contact between people who are within six meters of each other, through points of breathing released by coughing, sneezing and talking. He acknowledged that the virus could spread in other ways, including contaminated surfaces.
Finally, the updated CDC website includes a section acknowledging that virus particles, too, sometimes spread through the air, especially in confined spaces with poor ventilation. Scientists believe that in these cases, the virus particles in the air emitted "concentrate enough to spread the virus to other people", sometimes directly after the infected person leaves.
"Transmissions sometimes occurred when the infected person was breathing heavily, singing, exercising, etc.," the agency said.
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