COVID-19 first starts in the upper respiratory airwaves – particularly the front of the nose, researchers at Sunnybrook Research Institute are investigating whether a form of light therapy called Methylene blue photodisinfection (PDT) – a non-toxic dye activated by light and applied to the inside of the nose – can destroy the virus before it spreads into the lungs.“We do know that photo-disinfection can kill the COVID-19 virus and we’ve shown that in the laboratory,” said Dr.
Cari Whyne, one of the principal investigators of the study and research director of the Holland Bone and Joint Research Program at Sunnybrook Research Institute.