The plot thickens for the poor handling of data and information used for policy decisions:
https://www.theguardian.com/world/20...oxychloroquine

tl;dr:

"The World Health Organization and a number of national governments have changed their Covid-19 policies and treatments on the basis of flawed data from a little-known US healthcare analytics company, also calling into question the integrity of key studies published in some of the world’s most prestigious medical journals."