TrichinellaTrichinellosisAntibodies, HelminthFood ParasitologyLarvaAntigens, HelminthSensitivity and SpecificityFoxesDNA, HelminthWalrusesIntestinal Diseases, ParasiticMastocytosisAntinematodal AgentsRNA, HelminthTrichostrongyloideaNematode InfectionsMebendazoleUrsidaeGenome, HelminthFuneral RitesParasite LoadChymasesSwine DiseasesLimit of DetectionImmunization, PassiveTrichostrongyloidiasisHelminth ProteinsMast CellsCarnivoraRodent DiseasesDiagnostic ErrorsReproducibility of ResultsPolymerase Chain ReactionEnzyme-Linked Immunosorbent AssaySus scrofaEosinophiliaIntestinesMice, Inbred StrainsMeatSwineIntestine, SmallMesenteryDiagnostic Tests, RoutineReagent Kits, DiagnosticDiagnostic Techniques and ProceduresFood InspectionTime FactorsJejunumTrichurisDiagnostic ImagingMolting