title: [Incidence of antibodies to Toxoplasma gondii in cats from Brno and the surrounding area].
abstract: In the course of three years, 620 cats of all age categories were investigated for the occurrence of antibodies to Toxoplasma gondii. The serological examinations included the Sabin-Feldman reaction (SFR), complement-fixation reaction (CFR) and microprecipitation in agar gel (MPA), according to methods prescribed for use in Czechoslovakia. When the Sabin-Feldman reaction was used, 250 (40.3%) of the examined cats were found to be positive at the titre of 4-128. By the complement-fixation reaction, antibodies were demonstrated in 144 (23.2%) of the cats at the titre of 5-80. Microprecipitation in agar gel was positive in 106 animals, i.e. 17.1%. Antibodies to Toxoplasma gondii were demonstrated by one serological reaction in 150 (24.2%) cats; coincidence of two serological reactions occurred in 104 (16.8%) of the animals, and coincidence of all the three serological reactions was demonstrated in 48 (7.7%) cats. Specific antibodies were detected by minimally one serological reaction (which means one to three positive findings) in 302 (48.7%) of the examined cats. The diagnostic value of all serological reactions is discussed. It is recommended to repeat the examination after two to three weeks.
mesh_terms: D000818:Animals; D000913:Antibodies, Protozoan / Q000032:analysis*; D002415:Cats / Q000469:parasitology*; D014122:Toxoplasma / Q000276:immunology*
chemical_list: D000913:Antibodies, Protozoan
vernacular_title: Výskyt protilátek proti Toxoplasma gondii u kocek z Brna a okolí.