Cryptosporidium and drinking water.
D000818:Animals; D002417:Cattle; D003044:Coccidia; D003457:Cryptosporidiosis / Q000635:transmission; D003458:Cryptosporidium; D005399:Fishes / Q000469:parasitology; D006801:Humans; D014871:Water Microbiology; D014881:Water Supply