title: The influence of Seitz filtration on the activity of hydatid fluid antigen.
abstract: Filtration of hydatid fluid through Seitz EK filter pads results in an initial retention of a part of sensitizing proteins on the filter disc. Filtration through membrane filters allows the passage of most of the proteins of the fluid and may be considered as a more satisfactory procedure for the preparation of antigen for Casoni skin tests. Membrane filtrates are likewise reactive in indirect haemagglutination tests.
mesh_terms: D000818:Animals; D000941:Antigens / Q000302:isolation & purification*; D004446:Echinococcus / Q000276:immunology*; D005374:Filtration / Q000295:instrumentation
chemical_list: D000941:Antigens