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The over-all prevalence of intestinal parasites in arctic Greenland was 72%. The corresponding rate in Alaska, also based on a single stool examination, was 42%. In the Scandinavian arctic where social and climatic conditions approximate those of north temperate regions, the prevalence was 11%.
The Disko Bay population of Greenland differed from its Eskimo neighbors of arctic Canada and Alaska and from residents of Finnish Lapland in an absence of Diphyllobothrium species.
The observed prevalence of Entamoeba histolytica in arctic Greenland was 16%, but clinical amebiasis apparently was responsible for only a small part of the prevailing acute intestinal disease.
Dr. J. Clyde Swartzwelder and Mr. Stanley A. Abadie of the Department of Tropical Medicine and Medical Parasitology, Louisiana State University, had an active part in the laboratory examinations; and Dr. Edwin W. Brown, Jr., of the Harvard School of Public Health, Boston, and Dr. Eyvind A. Freundt of the Statens Seruminstitut, Copenhagen, Denmark, in the field studies in Greenland.
* This study was sponsored by the Commission on Environmental Hygiene, Armed Forces Epidemiological Board, and supported in part by the Office of the Surgeon General, Department of the Army, Washington, D. C.
Present address: Department of Public Health and Preventive Medicine, University of Pennsylvania School of Medicine, Philadelphia.
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