R. KasemsuthP. Panut-AmponC. SanghirunMahidol University2018-10-122018-10-121981-12-01Southeast Asian Journal of Tropical Medicine and Public Health. Vol.12, No.3 (1981), 410-412003836192-s2.0-0019768450https://repository.li.mahidol.ac.th/handle/20.500.14594/30193A diagnostic method for gnathostomiasis by radioimmunoassay was carried out. Antibody activity produced in cat serum against Gnathostoma antigen was measured by using solid phase method and 125I-labelled anti cat IgG antibody. The results showed that the antibody activity in cats infected with Gnathostoma spinigerum was significantly higher than that of the control group and of Toxocara infected cats even at a dilution of 1:10,000, except in the Opisthorchis infected group at the dilution higher than 1:400. The results in the present study seem to be promising for the diagnosis of gnathostomiasis. Cross reaction with other parasitic infections and the development for the higher specificity by this method are in progress.Mahidol UniversityMedicineArticleSCOPUS