Acquired resistance in mallard ducks (Anas platyrhynchos) to infection with Sphaeridiotrema globulus (Trematoda).
D000818:Animals; D001715:Bird Diseases / Q000276:immunology*; D004372:Ducks / Q000276:immunology*; D007110:Immunity, Active; D007114:Immunization / Q000662:veterinary; D014201:Trematode Infections / Q000276:immunology / Q000662:veterinary*