TrichinellosisTrichinellaTrichinella spiralisWalrusesFood ParasitologyUrsidaeAntibodies, HelminthIdahoCarnivoraFuneral RitesMeatMeat ProductsAnimals, WildDisease OutbreaksSus scrofaEpidemiologyMebendazoleFood IndustryFood ContaminationMolecular EpidemiologyAlbendazoleZoonosesAntigens, HelminthAnthelminticsSwinePopulation SurveillanceSwine DiseasesIncidenceLarva