I think what doctors are questioning is the possible political bias involved since many studies now have proven that Hydroxychloroquine, zinc and arithmizin has been proven successful in treating the disease in the primary to secondary stages and why a medication with a proven track record of safety over decades isn't being release to the general public for use as a prophylactic especially considering that there are a few countries who are not being infected as bad and that is a direct result of the use of Hydroxychloroquine against Malaria, many of these countries citizens are on hydroxychloroquine to prevent Malaria infection, including children and infants. Doctors here are now claiming that we could be rid of this virus within as early as thirty days if those other than people with heart problems were prescribed or allowed to buy it over the counter for use as a prophylactic. It actually use to be sold here over the counter until they realized it stopped Malaria therefore it had a constant stream of monetary value. In some countries it is still sold over the counter. Early on I would imagine all these doctors who hadn't had a whole lot of experience with the drug didn't question the caution, it's been months now and for many of them there is no doubt it works in the early to mid stages successfully and as a prophylactic.