TrichinellosisTrichinellaTrichinella spiralisWalrusesFood ParasitologyUrsidaeAntibodies, HelminthIdahoCarnivoraFuneral RitesMeatMeat ProductsZoonosesAnimals, WildSus scrofaMebendazoleDisease OutbreaksFood IndustryFood ContaminationAlbendazoleAntigens, HelminthAnthelminticsSwineSwine DiseasesLarvaPopulation Surveillance