I haven't researched this, but I seem to recall the prevalence of superstitions at very high level of African governments and societies, even in the 20th and 21st centuries. Usually based on sympathetic magic principles, this ranges from witch doctors attempting to influence the African Cup football matches to the belief that having sex with a virgin will cure AIDS, to Idi Amin (possibly) engaging in cannabalism.
I have no idea why Africa seem to be the focus of these stories, but I do know it's not unusual for societies to hold on to their superstitions well into the modern age, and so-called "Western" countries are not exempt.