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The tsetse flies are notorious as the insect vectors of the fatal nagana of domesticated mammals and of the equally dangerous sleeping sicknesses of man, both due to trypanosomes in the blood stream and fortunately both confined to tropical Africa by reason of their dependence for mammalian infection on the bite of the infected tsetse fly. Cattle are excluded from 200,000 square miles of Africa by the prevalence of these flies, and the deaths among men have been in the hundreds of thousands annually since the discovery of the cause of the disease in the blood of man by Dutton in 1902. These flies delay the civilization of tropical Africa for a distance of 600 miles on each side of the equator.
The author investigated these flies in the Cameroons in 1935 and this book bears the impress of his contact both with the scientific and practical problems that underlie
Die Tsetsefliegen: Ihre Erkennungsmerkmale, Lebensweise und Bekämpfung. Ein Leitfaden für die Praxis. JAMA. 1937;108(26):2249. doi:10.1001/jama.1937.02780260077027
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