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COVID-19, along with the sun's UV rays, entered the earth through the depleted spaces in the ozone layer.

Sun's ultraviolet rays enter the earth from the depleted ozone layer but not COVID-19, as it has an animal origin as per the scientific evidence.

Ozone, a chemical compound of three oxygen atoms, is found in the sky between 10 km and 50 km from the earth's surface. The ozone layer is an invisible protective shield that protects all life on earth from the harmful ultraviolet radiation from the Sun. The scientists discovered a hole in the mid-1980s in the ozone layer above Antarctica. The ozone hole refers to areas where the atmosphere level in the atmosphere is shallow. Ozone depletion causes more ultraviolet rays to enter the earth.

Niels Finsen discovered that ultraviolet rays could kill germs and had won Nobel Prize in 1903. The ultraviolet lights are growing in popularity popularly to disinfect hospital rooms and other public places. The ultraviolet light complements chemical disinfectants by targeting germs in a proven and different way.

More than 99.9 percent of seasonal coronaviruses present in airborne droplets were eliminated when exposed to a specific ultraviolet light wavelength as per a new study at Columbia University Irving Medical Center. So, COVID-19 could not have entered the earth along with the ultraviolet rays through the depleted ozone layer.

Moreover, COVID-19 is an infectious disease, which prompted an outbreak in Wuhan, China. COVID-19 is caused by a coronavirus called SARS-CoV-2. Coronaviruses are a large family of prevalent viruses in people and many different species of animals. Sometimes, animal coronaviruses can infect people and then spread between people. The scientific evidence suggests that the virus spread from animals to people. However, the exact source of this virus is still not known.

The COVID-19 pandemic has given rise to a lot of potentially dangerous misinformation. For reliable advice on COVID-19 including symptoms, prevention and available treatment, please refer to the World Health Organisation or your national healthcare authority.

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