What confusion over the delivery of COVID-19 continues to haunt us

T saidIn the years after the onset of the disease, we have a better understanding of how COVID-19 is taken: some patients transmit the disease in a lesser degree ( aerosols). These do not immediately fall to the ground, but move through the air like tobacco smoke. Some people can get the disease by breathing in those aerosols, or in close proximity, into the open room air, or less often, at a distance. But the journey to accepting critical scientific evidence of the spread of COVID-19 has been slow and controversial. Even today, new guidelines and guidelines about self -defense are still in use, in part because of one word: “airborne.”

This serious misconception of the disease disrupted the response in the first months of the disease and continues to this day. We are now seeing skin cleansing protocols that many people follow while going without masks. There is a general explanation for this first hypothesis. In hospitals, the term “airborne” is associated with a fixed set of protective measures, with the use of N95 respirators by staff and heart departments unsatisfactory for patients. This is a very important property and is required by law. Some N95s are at the onset of the disease, so it is difficult, if not impossible, to fully perform “airborne” operations in hospitals.

Because of his specific nature in hospitals and a lack of understanding of the nature of the flow of air and a lack of appreciation for its importance, health officials were wary of saying the word, although it is the most obvious way to talk to the public about shipping and how. to protect. As one article put it, “they say the coronavirus is not airborne – but carried by the air.” Due to the indefinite termination of the word “airborne”, it seems like we are referring to a ball game with the idea that it is a boxing game.

During a conference in February 2020, the Director of the World Health Organization said, “This is airborne, corona is airborne,” while a few minutes later he corrected himself, “Sorry I used the word koa, airborne. It is thought to spread by droplets or the transmission of the breath. Please take that route; it is not the word koa. “In March, he refused. WHO airs Covid-19, announcing social media, “FACT: # COVID19 is NOT airborne,” and called it “misinformation.” We and our colleagues, scientists and engineers who have studied aircraft parts for our entire industry, teamed up with WHO in April 2020 to express our concern that it is important to take action. air the release of COVID-19. WHO vehemently rejected our proposal and painted us as criminals who did not understand what was happening in the hospitals.

Likewise, the U.S. Centers for Disease Control does not use the term and ties itself in knots trying to describe transmission. In the end, we started to hear, but the first stage of the disease, when the disease is stopped as much as possible, and when everything is carefully considered and desired. to change new types of protection is missing. Almost non -lethal treatments for this disease, such as skin disinfection and hand washing. Billions have been spent on plexiglass screens that could increase shipping. Over the past two years, both agencies have seen transmission of the disease through the air, and in December 2021, WHO finally used the term “airborne” on its website to describe it. the nature of the prevalence of COVID-19 among individuals, despite the social status of the group. Media outlets continue to completely block the word. The word remains for CDC

We are accustomed to talking privately about diseases carried by water, food, blood, or vectors. If President Trump saw in February 2020, “You just blow the air, and that’s it,” why didn’t the public tell the air? According to common wisdom in the medical community, colds and flu are widely spread by large droplets, and there is a very high level to confirm that an illness is flying in the air. Historically, air transmission has been associated with long distances, rather than a width of 6 feet. Such events were difficult to diagnose because of a rapidly spreading disease, as our observation at that time was limited by rules that limited the search for objects within 6 feet of each. due to long process.

Read more: How to effectively clean indoor air against COVID-19

Concerns about the operation of the dispatch are guided by the observation of hospitals, where the best ventilation is available and therefore a lower level of air intake. Fresh air is released into the air and prevents it from accumulating over a long period of time, reducing the amount of time a person breathes in the disease. As the disease progressed and we and our colleagues tried to provide all the evidence pointing to airborne transmission, health care leaders began to be able to access special conditions. , That is, those with poor air quality. What they don’t know is that hospitals, close to other buildings – homes, schools, restaurants, and workplaces and gyms – are suitable for special conditions. . In these buildings, indoor and outdoor air changes can be changed once or twice per hour, while in hospitals, there are as few as 6 air changes per hour per hour. in the sick rooms and 15 in the operating rooms.

We’ve studied airborne illnesses for a long time to understand that “airborne” is an initial term in health care, however, we also experience frustration at the lack of an end to the term during illness. It’s good to talk about aerosols but not to say “airborne” or define “like smoke,” although it’s much better to talk in public. To most people, the word means something in the air, such as a dove or pollen. The situation is similar to trying to describe a carcinoma as a disease without using the term “cancer.” The use of the term before the disease facilitates the implementation of more effective mitigation measures, such as Japan’s 3Cs – prevent contact, protect the public, and prevent stable settings, no good wind – instead of focusing on the 6 -foot distance and the ground. clean up. It may have reduced the protection of masks.

The nature of medicine does not have to monopoly the term airborne. One way to reduce the time of communication confusion in the future is to change the choice of different types of care to prevent illness and disease. managing hospitals. Rather than assigning specific terms to current components – droplet, droplet, and air – hospitals could set the values ​​(e.g., 1, 2, 3, 4…) for different types of treatment, such as those used for biosafety processes in laboratories. This prevents certain words from being associated with editing requirements, leaving the words for normal use.

From the outside, it is easy for us to see a traditional, drug-centric approach that has contributed to the sclerotic response to the release of Covid-19. We see these sounds in their own right, though we need to understand that public knowledge is more important than medicine for public health, and of course for fighting an infectious disease. We, the two authors, don’t know what happens to a disease in your body or how to treat it, but we do know how the disease works in the environment – in or outside – and how to open it. This is the field of environmental engineering, mechanical engineering, aerospace science and aerosol science, fields dedicated to understanding the movement and management of gases and particles in the environment. . This technology has been left to our patient response.

We are pleased to see the Building recognizing air delivery and the importance of indoor air quality through the Clean Air in Buildings Challenge as part of the National COVID-19 Preparedness Plan. While this is a good start, improvements and additional funding are needed to get clean air in our homes and realize its long -term benefits. And because construction is responsible for about 30% of greenhouse gas emissions, we need to figure out how to do it effectively.

We can’t accept “airborne” as a dirty word. But increasing public awareness of the air we breathe is an opportune time to dedicate science, technology, and policy tools to ensuring the cleanliness and health of the air. air in our homes.

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