Myth or Fact: UV Rays Can Kill Corona Virus

Myth or Fact: UV Rays Can Kill Corona Virus

Word got out that ultraviolet (UV) light can kill the Covid-19 corona virus. In fact, a university in Thailand has created a passageway for UV rays that students must pass to disinfect their bodies. Is it true that UV rays can kill the corona virus?

Different types of UV rays, which can kill the corona virus?

Before exploring the truth UV rays can kill the corona virus, you must know that UV rays are divided into three types, which include UVA, UVB, and UVC.

  • UVA
UVA dominates around 95% of the UV rays that enter the earth. UVA can penetrate deep into the skin. Usually, it is UVA that causes skin discoloration. In fact, UV light is responsible for causing the effects of aging and wrinkles on the skin.

In fact, UVA is UV light that can "wake up" cancer cells in your skin.

  • UVB
UVB is biologically active UV light. Just like UVA, this UV light also causes discoloration of the skin and burns. However, the effects are not as fast as UVA.

UV rays can also cause aging and wrinkles on the skin. Not only that, UVB can also increase the risk of skin cancer.

Most of the UVB from the sun is filtered by the atmosphere, before finally entering the earth.

  • UVC
UVC is the most terrible UV light, because it is able to provide the greatest damage to the skin. UVC can penetrate the deepest layers of the skin. This UV light is filtered by the atmosphere and cannot reach the surface of the earth. UVC rays are considered capable of killing the corona virus.

In 1878, researchers succeeded in artificially producing UVC rays, to sterilize various objects in hospitals, airplanes, offices, and factories. In fact, UVC rays are also used in the sanitation process of drinking water.

Indeed, there are no specific studies that prove the effectiveness of UVC type UV rays in killing Covid-19. But experts have proven that UVC rays are effective in treating another type of corona virus, namely Severe Acute Respiratory Syndrome (SARS).

UVC radiation rays are believed to bend the structure of the genetic material of the virus and prevent it from developing in the body.

No wonder then that UVC light is used as an option in killing corona virus. Even in China, public transportation such as buses are equipped with UVC rays. The researchers there also created a robot that could illuminate the hospital with UVC rays. Not only that, local banks also use UVC rays to disinfect money.

However, whether the effectiveness of UV rays in killing corona virus has been tested and proven?

UV rays can kill the corona virus is still a myth

According to the World Health Organization (WHO), there is no UV light, including UVC, that can kill the Covid-19 corona virus. In addition, UV light which is usually used daily, turns out to cause skin irritation.

According to an expert on UV light, UVC light is a "bad thing" that should not affect any part of the skin. In just a few seconds, UVC rays can cause burns to the skin.

Have you ever felt glare when you see the sun? Yes, UVC rays can cause eye glare 10 times more severe if directly exposed to the eye. Terrible, right?

To get it, you need special equipment that is not available for ordinary people. Only experts have access to this equipment.

Recently, researchers from various countries have created UVC rays that are safer to use on the skin, called far-UVC. In a trial, far-UVC did not cause DNA damage.

The problem is that no bacteria and viruses were killed in the study because they were small enough to reach the light.

However, this newly developed far-UVC ray can prevent injury to mice as a test animal from methicillin-resistant Staphylococcus aureus (MRSA) bacterial infection and is proven to kill flu viruses in the air.

Can sunlight kill corona virus?

Myth or Fact: UV Rays Can Kill Corona Virus

If UVC has not been proven effective in killing the corona virus, what about the "brother", the UVA and UVB?
The short answer, maybe. However, you are advised not to hang the corona virus prevention method on both. Because, researchers do not yet know the time it takes UVA and UVB to be able to kill the virus that is in our bodies.

In addition, the researchers also did not know the power of UVA and UVB power needed to be able to kill the virus that is on the skin.

A study on SARS (close relative of Covid-19) proved that there was no effect of UVA rays when exposed to the skin for 15 minutes. But unfortunately, the study did not try UVA rays for more than 15 minutes. In addition, UVB rays also do not enter the test.

The conclusion is, the claim of UV rays can kill the corona virus, is still a myth and requires further study to prove it. Considering this study is still limited to test animals, don't just believe in the myth!

Compared to trying things that are uncertain, just do the way to prevent corona virus that has been proven. Wash your hands with running water and soap, always prepare a hand sanitizer, wear a mask when leaving the house, and do physical distancing!