Identification and Characterization of Antigenic Components of Sheep Hydatid Fluid by Immunoelectrophoresis

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Abstract
Sheep hydatid fluid was analyzed by immunoelectrophoretic methods. Nineteen antigenic components were detected. Tests with homologous and heterologous anti-sera showed that ten of the bands were of parasite origin. The characteristic features and staining reactions of each band were determined. In a group of diagnostic sera, eight of the ten parasite bands were identified. The host components which produce cross-reactions in diagnostic sera, and with antinormal human serum were identified. The role of host components as a cause of nonspecific reactions and the importance of using antigenic fractions free of host components are discussed.

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