UV-LED lights can kill coronaviruses and HIV
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The same lightbulbs used in offices and public spaces can destroy coronaviruses and HIV, according to a new study from University of Toronto (U of T) Scarborough.
Researchers killed both viruses using UV-LED lights, which can alternate between white light and decontaminating ultraviolet (UV) light. With a cheap retrofit, they could also be used in many standard lighting fixtures, giving them a “unique appeal” for public spaces, says Christina Guzzo, senior author of the study.
“We’re at a critical time where we need to use every single possible stop to get us out of this pandemic,” says Guzzo, an assistant professor in the department of biological sciences. “Every mitigation strategy that can be easily implemented should be used.”
UV lights kill viruses through radiation. Guzzo, alongside Ph.D. students Arvin T. Persaud and Jonathan Burnie, first tested the lights on bacterial spores (Bacillus pumilus spores) notorious for their resistance to this radiation.
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