418 stool specimens have been examined by using the MIFC-technic. A routine parasitologic examination of certain groups of foreigners to be made mandatory. No significant rate of infestation with helminths or pathogenic protozoans could be found in Germany (1 and 7% resp.) or in Northern or Western Europe (0 and 6% resp.), but the rate of infestation of Southern Europe (in each case 14%), Turkey (21 and 40% resp.), Africa, most of them from Ghana (17 and 67% resp.), Indochina (46 and 24% resp.) and the rest of Asia (28 and 24% resp.) has been found to be significantly higher. Altogether 22 per cent of the people from the South of Europe, 54% from Turkey, 56% of Indochinese refugees, 78% from Africa and 48% from the rest of Asia were in need of treatment.

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cestode Short Survey Vietnam protozoon trematode human Ethnic Groups geographic distribution Germany, West migrant worker Adolescent male female protozoal infection nematode Filaria adult helminthiasis Intestinal Diseases, Parasitic german federal republic English Abstract