TrichinellosisTrichinellaTrichinella spiralisWalrusesFood ParasitologyUrsidaeAntibodies, HelminthIdahoCarnivoraFuneral RitesMeatMeat ProductsAnimals, WildSus scrofaMebendazoleDisease OutbreaksFood IndustryFood ContaminationAlbendazoleAntigens, HelminthZoonosesAnthelminticsSwineLarvaSwine DiseasesPopulation Surveillance