[Evaluation of helminth intradermal tests in comparison to coproovoscopic surveys]. / Bewertung des Helminthen-Intradermaltests im Vergleich zu koproovoskopischen Erhebungen.

1600 subjects connected with mining were divided into 6 groups and examined because of intestinal parasites. There were: surface miners underground miners, retired miners and two groups of school-children up to 14 years old and from 14-17 years old, and persons not connected with the miners' work. The one control group consisted of 150 persons with negative coproscopical investigations, the other consisted of 112 persons, who were clinically healthy. The coproscopical investigations, morphological (eosinophil) and intradermal tests were made with the antigens Ascaris lumbricoides, Echinococcus granulosus, Cysticercus cellulosae, Taeniarhynchus saginatus and Trichinella spiralis. 214 persons (13.37%) were infected. The infestation with Enterobius vermicularis and Ascaris lumbricoides (about 96%) was prevailing. Eosinophily varied between 5-7% and was found in 111 persons (6.3%). Most positive intradermal tests with Ascaris lumbricoides antigen were confirmed in the group of patients infected with Ascaris lumbricoides (97%). Some cross-reactions were confirmed. The heaviest infestation with parasites was found out with the underground workers. The results of the coproscopical investigations were mostly similar to the results of the intradermal tests.

[Diagnosis of cysticercosis using the intradermal test]. / Diagnostik der Zystizerkose mit Hilfe des Intradermaltestes.

56 healthy rabbits were inoculated with the active Cysticercus each into lateral ventricle of the brain, the white substance of the brain and into Spatium subarachnoideale. Rabbits were killed after 32 weeks p.i. Then their brains were macro- ev. microscopically investigated. The positive seroreactions (ringpreciptitation reaction and the latex-test) were observed at the beginning of the second week after infection. Curve of the titers was revealed two tops: first one between 6-7 weeks, second one 16-22 weeks after infection. All rabbits except one reacted positive on the application of the Cysticercus antigen. The control group consisted of the 8 rabbits revealed negative serological and immunological reactions. Three groups of the cerebral cysticercosis, dependent on the localization of the cysticerci in the brains, were observed: oedema form, hydrocephalous form and tumor form. These forms as well as the symptoms are similar to the human cerebral cysticercosis.