TrichinellosisTrichinellaTrichinella spiralisWalrusesFood ParasitologyUrsidaeAntibodies, HelminthIdahoEndemic DiseasesCarnivoraFuneral RitesMeatMeat ProductsAnimals, WildSus scrofaMebendazoleDisease OutbreaksFood IndustryAlbendazoleAntigens, HelminthFood ContaminationZoonosesAnthelminticsSwineLarvaSwine DiseasesPopulation SurveillanceEnzyme-Linked Immunosorbent Assay