A new study by the Massachusetts Institute of Technology (MIT) points out that if you are in an indoor space, the social distance is the same regardless of whether you keep six feet or 60 feet, the risk of infection is actually the same, even if you wear a mask.
Martin Bazant, a professor of chemical engineering and applied mathematics at MIT, and John W.M. Bush, a professor of mathematics, jointly developed a method for calculating the risk of contracting the new coronavirus in indoor spaces, taking into account relevant variables such as length of stay, air filtration and circulation, immunity, variant viruses, and respiratory activities such as breathing, eating, talking, and singing. Respiratory activities such as eating, drinking, talking, singing, etc., found the above conclusions.
The peer-reviewed study by Bassaunt and Busch, which questioned the immunization guidelines issued by the federal Centers for Disease Control and Prevention (CDC) and the World Health Organization (WHO), was published earlier this week in the academic journal Proceedings of the National Academy of Sciences. Academy of Sciences.)
In a media interview, Bassaunt said the guideline of maintaining a social distance of six feet is not very effective, especially when people are wearing masks; he pointed out that the gas breathed while wearing a mask usually rises and then floats down to a certain location in the room, so on average, the chance of infection increases a lot more than when one person is far away from another in terms of background conditions.
He said that both the CDC and WHO ignore the variables of length of stay in indoor spaces, and that the longer one is in an indoor space with a diagnosed patient, the higher the chance of being infected with the virus.
To reduce the risk of infection in indoor spaces, he said, opening windows and installing fans to keep the air circulating are just as effective, if not more so, than installing major air filtration systems.
Bassaunt said the health authorities to set the maximum number of people in indoor space measures have its blind spot, because 20 people gathered in indoor space for a minute may be fine, but if more than a few hours in a row, the situation is very different.
He said the study found that many places were ordered to be temporarily closed during the epidemic, which is actually unnecessary because some sites are large enough and well ventilated, and the length of time people gather is the main factor in determining whether these spaces can be safely restarted in full.
He said that maintaining a social distance of six feet will give people a false sense of security, but in fact the risk of indoor space infected with the disease six feet and 60 feet are the same, “every person in the same space of the chance of infection, basically the same.”
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