You can kill Covid with a flick of a switch, study shows

As the world continues to race toward a vaccine for Covid-19, new Israeli research shows that the humble light bulb could become a major player in the fight against the pandemic.

Researchers have discovered that coronavirus can be killed quickly, efficiently and cheaply using ultraviolet light-emitting diodes, or UV LED lights.

In a study recently published in the Journal of Photochemistry and Photobiology B: Biology researchers found the optimal wavelength for killing the coronavirus is 267 nanometers.

They also discovered that a wavelength of 286 nanometers is almost as efficient, requiring...