Unreliable data: how doubt snowballed over Covid-19 drug research that swept the world
A vast database from a little-known company called Surgisphere has influenced rapid policy shifts as the world seeks treatments for Covid-19. But as researchers began to examine it more closely, they became increasingly concerned
Dr Carlos Chaccour had just woken up in Barcelona when he opened his laptop to read the latest Covid-19 research.
Usually, he would start the day by meditating, but that was proving difficult in the middle of a global pandemic.