“…However, for high-risk patients (immunocompromised, ICU-attenders), hospital tap water may become a source of nosocomial infections [ 151 ], as may poor hygiene practice in hospital kitchens [ 152 ]. Several parasite species may be transmitted to humans through the drinking water/food route, including, among others, the intestinal protists Entamoeba histolytica , Giardia spp., Cryptosporidium spp., Cyclospora cayetanensis, Cystoisospora belli , and Balantioides (=Balantidium) coli , and the generalized intracellular protists Toxoplasma gondii and Trypanosoma cruzi , as well as the intestinal helminths Dibothriocephalus latum, Taenia spp., and Anisakid nematodes, the liver flukes Fasciola hepatica , Clonorchis sinensis, and Opisthorchis spp., and Trichinella spp., which infect the human muscle tissue [ 23 , 153 , 154 ]. Moreover, the otherwise free-living amoebae Naegleria fowleri and Acanthamoeba spp.…”