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The Centers for Disease Control and Prevention (CDC) recently updated its guidelines on covid-19 and modes of transmission. The guide states that the coronavirus can be transmitted through an airborne infection, even if it maintains a distance of six feet (1.8 meters).
“There is evidence that COVID-19 patients in special circumstances appear to have infected others who have stayed more than six feet away. These infectious events occurred in closed rooms with inadequate ventilation. At times, the carrier breathed with difficulty , for example, in relation to singing or training, “is written in the CDC guide.
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FHI only
On Thursday, the National Institute of Public Health (NIPH) stated that they agree with the CDC’s update on airborne infections, but especially with the main conclusion that it is much more common for coronavirus to spread through droplet infection among people who have close contact.
– The CDC’s conclusion is that airborne infections can occur. But his conclusion is, first of all, that it is not common and that the droplet infection is the most important. We have wanted to say it all along. We’ve also always believed that an airborne infection can occur, explains director Camilla Stoltenberg of the National Institute of Public Health to Dagbladet.
React to this: – Cheers me
As early as July, more than 200 researchers warned the World Health Organization (WHO) about covid-19 and airborne infections. The researchers expressed concern that the absence of clear recommendations and measures against airborne contagion could have significant consequences. In particular, they were concerned that people who believe they are protected against COVID-19 infection are not.
The researchers suggested that authorities should strengthen ventilation in public buildings, workplaces, schools, hospitals, and nursing homes. They also suggested avoiding dense population situations, especially on public transportation and in public buildings.
Nozzle
FHI Director Stoltenberg tells Dagbladet that the press release on airborne infections is not an important acknowledgment of the mode of transmission. She says there is more knowledge about in what situations it can occur.
– Unfortunately, there is not enough good information on that now. But it can, for example, be important in situations in closed rooms, where you scream, sing or speak very loudly. We don’t know for sure, but it is possible, says Stoltenberg.
– Does it strengthen the arguments in favor of the use of masks?
– If it does. But at the same time, it is not the case that you find yourself in that kind of situation so often. It is common to find yourself in situations where droplet infection predominates. We also believe that droplet infection is the dominant mode of transmission in the events we have had.
Massesmitte
Airborne pollution can occur in closed rooms with poor ventilation. While densely populated rooms with poor ventilation can lead to massive infection events. FHI writes in its latest risk assessment that mass infection events may appear to be a major driving force for the covid-19 pandemic.
– It is possible that massive infection events are the great driver of the epidemic. This means that we estimate that a high proportion, perhaps up to 80 percent of those infected, continue to be infected. While there is a small proportion, perhaps 20 percent of those infected, they infect many, and some infect many, Stoltenberg says, continuing:
– We do not believe that they are people or viruses. We believe it is about the facts, that is, about the situations you find yourself in. For example, it could be a bus trip with retirees traveling across the country, where at least one person is infected beforehand. And there may be a group of workers in the Hyllestad municipality, where many come from Poland and live in crowded barracks.
