[Parasitic disease in schoolchildren in a village in Swiss Jura].

In a village of the Swiss Jura we examined 134 schoolchildren (7 to 16 years old) clinically, parasitologically and serologically for parasites. Half of the children showed an insufficient hygiene of hands, feet and/or anus. In 7 out of 107 anus-scotch-tests there were eggs of Enterobius vermicularis. Protozoans could be demonstrated in 8 of 133 MIF-stool-samples (2 cases of Giardia lamblia, 2 Endolimax nana and 4 Jodamoeba bütschlii). Using the procedure of enrichment of Telemann no helminth eggs were detected. Altogether parasites were found in 10% of the children. 31 children have antibodies against Toxoplasma gondii (IF titre greater than or equal to 1:40). 5 children showed a positive Toxocara-serology, additional 5 an uncertain positive reaction. The immunodiagnostic of Echinococcosis (ELISA, IF, IHA, CIE) was doubtfully positive in 4 children. In this study, intestinal protozoans and E. vermicularis were the most commonly occurring parasites followed by asymptomatic toxocariasis.