GiardiasisGiardia lambliaMedication ErrorsMedication AdherenceMetronidazoleFecesCampingAntiprotozoal AgentsHealth ResortsIntestinal Diseases, ParasiticCryptosporidiosisAntitrichomonal AgentsQuinacrineWater SupplyMedication ReconciliationMedication SystemsMedication Systems, HospitalAntiparasitic AgentsDiapers, InfantMalabsorption SyndromesTrophozoitesDuodenoscopyTinidazoleJejunumMandatory Reportingpara-AminobenzoatesParasitologySwimming PoolsDiarrhea