Here is an article from NIH Virology Journal in 2005
Chloroquine is a potent inhibitor of SARS coronavirus infection and spread
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1232869/
It has been proven since 2005.
#DoYourOwnResearch
USA: Misinformation about the coronavirus is proving highly contagious
Here is an article from NIH Virology Journal in 2005
Chloroquine is a potent inhibitor of SARS coronavirus infection and spread
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1232869/
It has been proven since 2005.
#DoYourOwnResearch