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Sunday, December 5, 2021

Does disinfecting public spaces affect the Coronavirus?

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A few days ago, the world's media reacted to images of the process of spraying disinfectants on the streets of Tehran and several other cities around the world. The mechanism doesn't seem to be limited to a handful of cities around the world, and even Amazon, the online retailer of the United States, is testing the method of spraying inside its warehouses to encourage current employees to return to work. In the news and advertising media, there are still images of service groups trying to clean up public spaces, to the point that for some time now we have even seen many families obsessively disinfect their clothes and shopping carts.

Such efforts are likely to make people feel that their governments have made every effort to deal with Corona, but the truth is that experts still do not agree on the practical effectiveness of such methods in preventing the spread of contamination. Michael StraholmThe director of the Center for Research and Policy for Infectious Diseases at the University of Minnesota says:

These sprays and other general public programs have no scientific basis, and at best, waste of resources and, at worst, a way to disperse disinfectants in the environment that are not desirable at all.

The fact is that most reports indicate that the virus is transmitted through the respiration of particles in the respiratory tract of infected people, and not by touching surfaces that may have once been infected with the virus. Even the Centers for Disease Control and Prevention has revealed on its website:

There is no evidence that the new coronavirus is transmitted to humans through contaminated surfaces.

Spraying disinfectants in open spaces and other large-scale public programs has no scientific basis.

Dr. Straholm believes that washing hands is still very important, but to prevent infection, our focus should still be on staying away from others. Meanwhile, researchers no longer reject the effectiveness of the general disinfection method with such determination. Believe it or not Mark LipsichAn epidemiologist at Harvard University says there is still a lot of information about the virus that we are not aware of. In a recent interview on April 7, he said:

Personally, I think it is very unlikely that disinfection of open spaces will be harmful, but the effectiveness of these measures stems more from suspicion than from a scientific point of view, because no one has yet studied such issues. It is even difficult to study the effectiveness of such measures. In the face of this, everyone recommends a set of interventions, which is, of course, the right approach.

The routine of scientific research is that each method is tested individually and individually to evaluate its effectiveness. Joshua SantarpiaAn associate professor of pathology and microbiology at the University of Nebraska also criticizes the widespread use of disinfectants in outdoor spaces and thinks that spraying disinfectants through trucks on the streets is a kind of extravagance that is not needed at all.

According to the Associated Press, the news published in cyberspace about the spraying of disinfectants by helicopter over the New York sky is not true. However, Dr. Santarpia believes that disinfecting surfaces indoors, such as airports, can be helpful. He says it is important to make sure that such places are not contaminated before people are allowed to enter.

Some airlines, such as Delta, have begun disinfecting the interior of their aircraft with the help of firing methods, and even city transport officials in New York, Boston and Washington have recently put the cleanup of public transport on their agenda. There have also been reports that Georgia's National Guard has recently disinfected nursing homes in the state.

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Recent studies show that the causative agent of covidase 19 on more than one surface cannot survive for more than a few days. However, we do not yet know whether the severity of contamination on these surfaces can be high enough to allow disease transmission to individuals. So theoretically, not using a place for a week should be enough to disinfect it. However, according to Dr. Santarpia, people's sensitivity to more precautionary measures is quite significant:

We want to be able to say, "I cleaned up here and I'm sure it's safe."

Theoretically, not using a place for a week should be enough to disinfect it.

The Centers for Disease Control has come up with guidelines on which products are effective in safely clearing the coronavirus, and the US Environmental Protection Agency has released a list of approved cleansers.

Documentary PozaThe CEO of Force of Nature, a startup that produces environmentally friendly disinfectants, says home cleaners are only designed to disinfect surfaces and not to clean up airborne viruses. Of course, Dr. Sterholm himself is one of the doctors who has spent many years of his 40-year career informing the public about the importance of frequent hand washing in the prevention of various diseases; therefore, the public does not want the importance of this method of prevention to be public. Reduce. However, he also believes that social avoidance is still the most effective way to prevent most cases of Quaid 19.


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