AscaridoideaAscaridida InfectionsRaccoonsAscaris suumAscariasisAscaridiasisLarva MigransToxocaraCentral Nervous System HelminthiasisAscarisAscaris lumbricoidesAscaridiaProcyonidaeToxocariasisHelminthiasis, AnimalNematode InfectionsToxocara canisPetsHelminthsAnthelminticsDNA, HelminthParasitic Diseases, AnimalNematodaParasite Egg CountIntestinal Diseases, ParasiticAntibodies, HelminthCaenorhabditis elegansFeces