The animal link to sleeping sickness
FollowAs with many parasites, the nuisance they bring is partly compensated for by new insights they provoke. The African trypanosome is perhaps unique among all of the diseases of developing worlds. The diseases of sleeping sickness, inflicted on man and cattle alike, perhaps drove early man ‘out of Africa’ — in an attempt to avoid tsetse infested areas of the Rift Valley. The Zulu word for powerlessness and useless, “N’gana