The contemporary methods of specific antigen selection as well as determination of particular for infected hosts epitopes were described. The immuno-diagnostics of echinococcosis, trichinellosis, canine filariosis and toxocarosis (larva migrans) were demonstrated as examples to illustrate the progress in test efficiency. The need of application of highly specific antigens in very sensitive methods, to which ELISA belongs, was stressed.
The application of radioactive tracers in pathophysiological examinations of domestic and laboratory animals infected with parasites was described. The results of these studies on the turnover of proteins and formation of immune complexes are important for understanding of parasite diseases. The meaning of radioisotopes as an indispensable tool in observations of dynamic processes was demonstrated.