How the stink of a waterbuck could prevent sleeping sickness in Kenya | Africa |

A collar worn by livestock containing animal odour repellent to the tsetse fly could transform the lives of farmers in Kenya, reports Laila Ali. The tsetse fly, found in 37 countries in sub-Saharan Africa, can be a curse for smallholder farmers and their families. The flies carry the trypanosome parasite that can cause sleeping sickness in humans and nagana in livestock. But a group of scientists in Nairobi is developing a powerful insect repellent using the stench of waterbucks, a type of large antelope.