TrichinellosisTrichinellaTrichinella spiralisWalrusesFood ParasitologyUrsidaeAntibodies, HelminthSeverity of Illness IndexIdahoCarnivoraFuneral RitesMeatMeat ProductsAnimals, WildSus scrofaMebendazoleDisease OutbreaksFood IndustryFood ContaminationAlbendazoleAntigens, HelminthZoonosesAnthelminticsSwineLarvaSwine DiseasesPopulation Surveillance