Thread: Can ultra violet light be used as a disinfectant?

See:

Can UV Light Be Used to Kill Airborne Flu Virus? - WebMD

“MONDAY, Feb. 12, 2018 (HealthDay News) – As a particularly nasty

flu season rages across the United States, scientists have found a powerful new disinfectant that makes “light” work of the virus.”

The article goes on to note:


“Though hand-washing remains critically important, it does not prevent every instance of transmission,” Grosso said. “Immunization and antiviral medications are also important, but again, have limitations. It appears that low-dose far-UV light is safe and effective, and has the advantage of inactivating a wide range of disease-causing viruses.”


JWK

“Airborne-mediated microbial diseases such as influenza and tuberculosis represent major public health challenges. A direct approach to prevent airborne transmission is inactivation of airborne pathogens, and the airborne antimicrobial potential of UVC ultraviolet light has long been established; however, its widespread use in public settings is limited because conventional UVC light sources are both carcinogenic and cataractogenic. By contrast, we have previously shown that far-UVC light (207–222 nm) efficiently inactivates bacteria without harm to exposed mammalian skin. This is because, due to its strong absorbance in biological materials, far-UVC light cannot penetrate even the outer (non living) layers of human skin or eye; however, because bacteria and viruses are of micrometer or smaller dimensions, far-UVC can penetrate and inactivate them. We show for the first time that far-UVC efficiently inactivates airborne aerosolized viruses, with a very low dose of 2 mJ/cm2 of 222-nm light inactivating >95% of aerosolized H1N1 influenza virus. Continuous very low dose-rate far-UVC light in indoor public locations is a promising, safe and inexpensive tool to reduce the spread of airbornemediated microbial diseases.”

Get the facts, CLICK HERE

JWK

See

Internal UV Treatment Administered Via Endoscopy

Abstract:


“A device and method is proposed to enable the treatment of interior of bodily hollow organs and other interior cavities of a body for a number of harmful virus, fungal, and bacterial entities and autoimmune conditions by internal short wavelength ultraviolet light by use of specially equipped endoscope-like devices.”


JWK

I think there is merit in using UV Light in and endoscopy way to kill viruses in lungs, throat, nasal passages, etc.

JWK

See: UV Light Therapy is Being Studied as COVID-19 Treatment at Cedars Sinai Hospital


UV Light Therapy Explained

"Again, while it’s not clear if Trump was actually referring to this particular UV light therapy, according to an April 21, 2020 press release, Aytu BioScience, Inc. has partnered with Cedars-Sinai to develop and commercialize its Healight Platform Technology, commonly known as “Healight”. The Healight technology delivers intermittent ultraviolet (UV) A light through an endotracheal catheter and according to the company, it is being studied as a potential treatment for coronavirus and other respiratory infections.

First developed in 2016 by the research team of the Medically Associated Science and Technology (MAST) Program at Cedars-Sinai and led by Mark Pimentel, MD, Healight has shown potential as an effective antiviral and antibacterial treatment. The device uses UVA light, because of all three forms of UV light, UVA has been shown to have the least amount of harm to mammalian cells while still killing viral and bacterial cells.

Aytu is working alongside a research team at Cedars-Sinai Hospital on an expedited regulatory process to try to use the technology faster for critically ill intubated patients. The company notes that along with being a potential treatment for viral and bacterial pathogens, Healight may also be helpful in treating bacterial infections in ventilator-associated pneumonia."


The article goes on to say: “Our team has shown that administering a specific spectrum of UV-A light can eradicate viruses in infected human cells (including coronavirus) and bacteria in the area while preserving healthy cells,” Dr. Pimentel of Cedars-Sinai stated."


Seems that Trump was really onto something!


JWK