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Debate over use of ultraviolet light to zap Covid-19

Using advanced light technology to sanitise the air and public spaces of airborne viruses, including Sars-CoV-2, is being touted as a possible way to curb the spread of pandemics,  Nathan Adams, writing for Weekend Argus at reports from Cape Town, South Africa. While social distancing and sanitising your hands remain the main line of defence for the spread of Covid-19, ultraviolet light is also being used at malls and airports overseas. Columbia University physicist Dr David Brenner has been at the forefront of developing this light technology for everyday use. Ultraviolet C (UVC) has wavelengths of 200-280 nanometres…
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