Intestinal Diseases, ParasiticProtozoan InfectionsParasitic DiseasesHelminthiasisHelminthsPrevalenceIsosporaHymenolepiasisParasitesFecesGiardiasisToilet FacilitiesNematode InfectionsSaint LuciaEthiopiaAmoebozoaHygieneQatarGiardia lambliaParasite Egg CountBlastocystis hominisAscaris lumbricoidesHealth FairsAscariasisCryptosporidiumCross-Sectional StudiesEntamoebaRural PopulationThailandSoilAIDS-Related Opportunistic InfectionsDiarrheaParasitic Diseases, AnimalAge DistributionRisk FactorsHIV InfectionsSocioeconomic FactorsCD4 Lymphocyte CountCestode InfectionsTrichurisHelminthiasis, AnimalSparganosisAnthelminticsSparganumTrichuriasisAntibodies, HelminthTrematode InfectionsFascioliasisTaeniaIsosporiasisHookworm InfectionsSchistosomiasisCote d'IvoireChadHymenolepisAntinematodal AgentsStrongyloidiasisAntiparasitic AgentsEchinococcosisAlbendazoleParasitologyAnisakisNeurocysticercosisCysticercosisPyrantel PamoateEimeriaAntigens, HelminthTaenia soliumTrematodaFasciola hepaticaAngiostrongylusBrazilCentral Nervous System HelminthiasisStrongyloidesTrypanosomiasisMalaysiaCoccidiosisDictyocaulus InfectionsSchistosoma haematobiumEye Infections, ParasiticCentral Nervous System Parasitic InfectionsCestodaSex DistributionAnisakiasisCysticercusEosinophiliaEchinococcusLeishmaniasisBlastocystisSanitationTaeniasisEuglenozoa InfectionsEnterobiusHost-Parasite InteractionsToxocariasisAncylostomatoidea