TrichinellosisTrichinellaTrichinella spiralisWalrusesFood ParasitologyUrsidaeAntibodies, HelminthIdahoCarnivoraFuneral RitesMeatAnimals, WildMeat ProductsSus scrofaMebendazoleDisease OutbreaksFood IndustryFood ContaminationAlbendazoleZoonosesAntigens, HelminthAnthelminticsSwineSwine DiseasesLarvaPopulation Surveillance