The U.S. Department of Homeland Security provided details regarding a long-awaited study of the effects of the sun on COVID-19, AFP writes.
Also on the topic: Warm weather will not weaken the coronavirus, – Ministry of Health
They report how ultraviolet light destroys the coronavirus. It is alleged that during the experiment, solar radiation was recreated in the laboratory, and in its intensity it did not differ from the present.
The results of this study last week hit the White House, after which Trump made his statements about the power of the sun, which surprised many experts.
How the sun destroyed coronavirus in an experiment
The head of the department, William Bryan, told reporters that the number of viral particles on an uneven surface has decreased by half after two minutes of exposure to sunlight and at a temperature of + 22ºC with a humidity of 80%.
The number of viral particles flying in the air for one and a half minutes also decreased by half at room temperature and humidity of 20%.
The results surprised the experts very much. Most of the sun's ultraviolet rays belong to the UVA subtype, it is they that cause tanning in humans. Previously, science has not proved that this subtype is dangerous for viruses.
On the other hand, the ultraviolet spectrum of UVC strongly affects different genetic material and viral cells, so UV lamps are often used for sterilization. But it is precisely this part of the spectrum in the sun that does not exist.
Scientists who conducted the experiment emphasize that it was the solar subtype of UV radiation that was found in vivo.
Critics of the study also emphasized that the FDA (US Food and Drug Administration) has a peer-reviewed article proving that the SARS-CoV virus does not respond to sunlight.
Note that the results of this study are really contradictory. Because in many hot countries, large outbreaks of coronavirus have also occurred.
Truth and Myths about Coronavirus / Channel 24 Infographics
For more news regarding treatment, medicine, nutrition, healthy living and much more, read the Health section.