NematodaAscaridoideaAscaridida InfectionsRaccoonsAscaris suumAscariasisAscaridiasisLarva MigransDracunculoideaSpirurida InfectionsHelminthiasis, AnimalToxocaraCentral Nervous System HelminthiasisAscaridiaNematode InfectionsAscarisDNA, HelminthAscaris lumbricoidesProcyonidaeStrongylidaOxyuroideaToxocariasisAir SacsToxocara canisAnguillaSpiruroideaAscarididaPetsOxyuriasisHelminthsAnthelminticsAnisakisParasitic Diseases, AnimalAngiostrongylus cantonensisMetastrongyloideaParasite Egg CountTylenchidaAnisakiasisPaleopathologyIntestinal Diseases, ParasiticAtelidaeAntibodies, HelminthRhabditidaGenome, HelminthOesophagostomumMansonelliasisSetariasisSetaria NematodeCestodaMermithoideaMurinaeFish DiseasesEnoplida InfectionsRiversMansonellaCaenorhabditis elegansTrichostrongyloideaTardigradaOesophagostomiasisStrongylida InfectionsFilarioideaArgentinaMuscle, StriatedTrichostrongylusHeligmosomatoideaRodent DiseasesFecesFishesGnathostomaLarvaBrazilTrichinella spiralisAntinematodal AgentsParasitesCyprinidaeCaenorhabditisInvertebratesNematospiroides dubiusGenome, MitochondrialPhylogenyCrustaceaFresh WaterHost-Parasite InteractionsMicroscopy, Electron, ScanningHelminth ProteinsDNA, Ribosomal SpacerSequence Analysis, DNABiological EvolutionSpecies SpecificityMolecular Sequence DataEvolution, MolecularSeasons