Shining a light on dangerous microbes

Public lighting — or a special kind of it — could be the next weapon in the war against the flu and other communicable diseases. A researcher from Columbia University in New York thinks that far-ultraviolet light could be an effective way of killing microbes — from drug-resistant bacteria in hospitals to flu bugs in public schools to world-travelling viruses in airplanes. “We can put these lamps in the ceilings of public places, so the air in that location will be exposed to these far-UVC rays, so any bacteria or viruses should be killed,” said David J Brenner.

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Shining a light on dangerous microbes

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