The British trial Recovery has given positive results on a molecule: dexamethasone, to treat the patients most seriously affected by Covid-19. 

The WHO called on Monday to increase the production of dexamethasone and to "distribute rapidly worldwide" this powerful steroid which has proven to be effective in treating the most seriously ill patients with Covid-19.
"Fortunately, it is an inexpensive drug and there are many manufacturers of dexamethasone around the world who we believe can speed up production," said WHO Director-General Tedros Adhanom Ghebreyesus, during a virtual press conference from the organization's headquarters in Geneva.

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