Intestinal parasitoses in Czechoslovak citizens working abroad.

This paper presents results of coprologic examinations of Czechoslovak citizens in connection with their working sojourns in 50 tropical and subtropical countries in Asia, Africa and Latin America. Among 525 persons examined, pathologic findings in stool were registered in 74 persons (14.1%) during their stay abroad and after return home. The incidence of particular infections during the period under study was as follows: non-pathogenic protozoa were found in 8.2% of cases, Entamoeba histolytica in 3.8%, Giardia intestinalis in 2.1% and helminthiases in 2.1%. Percentage of persons with positive findings in dependance on area visited fluctuated from 6.8%. (East Asia) to 30.0% (West and Central Africa).