Waterborne giardiasis.
D000328:Adult; D003967:Diarrhea / Q000209:etiology; D005243:Feces / Q000469:parasitology; D005260:Female; D005873:Giardiasis / Q000150:complications / Q000235:genetics / Q000469:parasitology / Q000635:transmission*; D006801:Humans; D007413:Intestinal Mucosa / Q000469:parasitology; D014881:Water Supply