This is not an accurate characterization of the studies. The well conducted studies that show chloroquine as having an affect on novel coronavirus have all be

This is not an accurate characterization of the studies. The well conducted studies that show chloroquine as having an affect on novel coronavirus have all be in vitro. The in vivo studies that have been done that showed anecdotal evidence of effect were poorly conducted, including doing things such as excluding people from the results that died from cv19 while taking chloroquine. Better in vivo studies have showed that hydroxychloroquine on it's own had no impact on whether or not someone needed to go on a ventilator, and resulted in a nearly 3x increase in all cause mortality. Hydroxychloroquine + azithromycin did not show a significant increase in all cause mortality, but also had no statistically significant impact on whether or not the patient would need to go on a ventilator, and overall mortality was similar to the control group. Other studies have had to halt due to the number of patients dying due to cardiac issues. If anything, all large studies with proper controls are showing that chloroquine and hydroxychloroquine are ineffective at treating cv19 at best, and deadly in their own right at worst.