Sleeping sickness : a tale of two diseases.
Trapping was done with between three and 60 traps set in villages that were affected by sleeping sickness.
Often wrongly thought of as a disease of the past, the prevalence of human sleeping sickness is increasing in many areas.
Five hundred people were examined for sleeping sickness, but no case was found.
Amongst these are some of the world's most important pathogens, notably those causing malaria and sleeping sickness.
Yet epidemics only had a major impact on the rate of demographic decline in the years 1902-7 and 1917-19, when sleeping sickness, smallpox, meningitis and influenza mortality peaked.
Greatly increased fly-human contact enabled acute local epidemics of sleeping sickness to occur, as trypanosomes were passed quickly through the human population by direct mechanical inoculation.
Presence or absence of sleeping sickness.
