Is Your Blood Oxygen Level in the 50s?

Viren: "It's just so surreal. I remember you sent me a text message of somebody who had an oxygen saturation reading of like in the 50s and they were on their phone" A paper coming out of China found that one of the proteins made by this virus has the ability to attack hemoglobin, Viren says. 'This is a preprint paper. So who knows what validity it will end up having'