This is actually very true. My sister who has a friend who is Liberian and has been to Liberia said a lady used her own house to treat people with ebola. Just look at how quickly the DRC solved their ebola along with Nigeria and others. I don't know what happened with Liberia, Sierra Leone or Guinea but my guess is that the people were dependent on the western doctors. Not trying to make it out this simple.During the ebola stuff my aunt actually made a remedy that "cured" people who took it. I use cure loosely because peoples symptoms went away but I won't go out and say it's something official that completely fixed the problem.
This is why I get offended when people call African Sciences "witchcraft". African Sciences produced medicine that were meant for good but could be used for evil the same way we see with pharmaceuticals in the states.
The Haitians did that very same thing during the early period of the slave rebellion. And no its definitely NOT "witchcraft." Because this "witchcraft" was far more advanced than medicine in medieval Europe and even the 19th century.