GiardiasisGiardia lambliaMetronidazoleFecesCampingAntiprotozoal AgentsHealth ResortsIntestinal Diseases, ParasiticCryptosporidiosisAntitrichomonal AgentsQuinacrineWater SupplyMalabsorption SyndromesDuodenoscopyDiapers, InfantAntiparasitic AgentsTinidazoleTrophozoitesDiarrheaJejunumMandatory ReportingSwimming PoolsParasitologypara-Aminobenzoates