Muskrats and waterborne giardiasis.
D000818:Animals; D003411:Arvicolinae / Q000469:parasitology*; D004197:Disease Reservoirs / Q000662:veterinary*; D005873:Giardiasis / Q000635:transmission / Q000662:veterinary*; D006801:Humans; D051381:Rats; D012376:Rodent Diseases / Q000635:transmission; D014867:Water
D014867:Water