Molyneux D H, Baldry D A, Fairhurst C
Acta Trop. 1979 Mar;36(1):53-65.
This paper presents evidence that tsetse flies (Glossina) can be dispersed by wind. This dispersal in West Africa is suggested to be along a south-west north-east axis. The implications of wind dispersal of Glossina for chemical and genetic control operations is discussed. Field experiments necessary to test this hypothesis are recommended. A study of human trypanosomiasis foci in West Africa has revealed that foci are orientated in roughly parallel lines in a south-west north-east direction. This directionally was significant when compared with 7 other compass points. It is proposed that foci could be populated by infected flies dispersed from the south west, where denser populations exist, on the prevailing winds in the late dry/early rainy season. The significance of these ideas in relation to the epidemiology of Trypanosoma brucei rhodesiense in Ethiopia and T. evansi are discussed.
本文提供了证据表明采采蝇（舌蝇属）可随风扩散。在西非，这种扩散被认为是沿着西南-东北轴线进行的。文中讨论了舌蝇随风扩散对化学和基因防治行动的影响。建议开展必要的实地试验以验证这一假设。对西非人类锥虫病疫源地的一项研究表明，疫源地大致呈西南-东北方向的平行线排列。与其他7个方位点相比，这一方向性具有显著性。有人提出，疫源地可能是由在旱季后期/雨季初期盛行风的作用下，从西南方向（那里种群密度更高）扩散而来的受感染苍蝇所占据。文中还讨论了这些观点与埃塞俄比亚的罗德西亚布氏锥虫及伊氏锥虫流行病学的相关性。
