EN
Workers of a Fowl Farm and Slughter House (332 persons) were examined using complement fixation test with concurrent application of IDT in 84 subjects A positive complement fixation reaction was found in 44 persons (13.2%), slightly positive one in 9 (2.6%) and negative result in 279 subjects (84.0%). Parallel examinations by complement fixation and intradermal tests were comparable; negative results being obtained in 57 persons (67.8%). Moreover, complement fixation test was performed in cattle (64 heads) without any positive result and in 203 small mammals, where a positive result was established in 9 cases. Trichinoscopic examination for the presence of Trichinella spiralis revealed only in two cases of Sorex araneus out of 502 small mammals the occurrence of parasites, suggestive of T. spiralis. Details are given in enclosed tables.