This does not make much sense to me. If it was effective, it should decrease the lethality rate, not the growth in the number of deaths which is much more affec

This does not make much sense to me. If it was effective, it should decrease the lethality rate, not the growth in the number of deaths which is much more affected by the actual number of cases. In the page you link you can see that lethality rate has not fallen. Also, as I wrote I'm pretty sure that I saw an earlier version of that document, dating IIRC to the beginning of the month, that prescribed more or less the same combination of chloroquine and antivirals as a first line treatment.