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标题：Ineffectiveness of DDT residual spraying in stopping malaria transmission in the Jordan Valley
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作者：M. A. Farid
期刊名称：Bulletin of the World Health Organization
印刷版ISSN：0042-9686
出版年度：1954
卷号：11
期号：4-5
页码：765-783
语种：English
出版社：World Health Organisation
摘要：The malaria-control campaign in the Jordan Valley—undertaken by the United Nations Relief and Works Agency for Palestine Refugees in the Near East in 1949—has been based solely on DDT residual spraying in the northeastern areas, but in certain southern districts some larvicidal and drainage work has been done. Observations made in the north-east showed that active malaria transmission had occurred in 4 of the 12 villages surveyed in 1951, and in 8 of the 9 villages surveyed in 1952. That the insecticide was effective was demonstrated by the fact that sprayed structures were almost entirely free from anophelines four months after the last spraying, but entomological surveys showed that Anopheles sergenti and A. superpictus (the main malaria vectors) were successfully evading contact with sprayed surfaces by using caves and fissures in hills as daytime resting-places. The author discusses the bearing that the topography of the area and the habits of the population have on the transmission of the disease, and stresses the importance of surveys. He recommends the resumption of antilarval measures in the Jordan Valley. Full text Full text is available as a scanned copy of the original print version. Get a printable copy (PDF file) of the complete article (1.5M), or click on a page image below to browse page by page. 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783