No, it is not. HCQ stopped being effective against malaria in Africa decades ago. It is not widely taken there. In fact, it hasn’t been used in so long that a couple of strains that are not chloroquin-resistant have recently been discovered in Uganda.
See: https://www.science.org/do/10.1126/science.aaf9947/full/four.jpeg
Ivermectin is also not widely taken. In very specific areas where river blindness or elephantiasis is endemic, it is taken once or twice per year. For intestinal worms, it’s a one-and-done deal.
There is likely a combination of reasons for the lower rate of Covid in Africa. Younger population, fewer people living in buildings with HVAC, fewer comorbidities, etc.
Almost everyone over the age of five living in areas where malaria is endemic have natural immunity and take no antimalarial medications. The development of natural immunity to malaria is an interesting process. Malaria parasites are tricky little devils and switch up the proteins expressed on their surfaces to evade our immune systems. This might be why there is higher resistance to Covid in Africa.
The article did mention a younger aged population with fewer elderly. Perhaps sunshine and more time outside also help.
