[The occurrence of Listeria monocytogenes in cattle in Niedersachsen].
D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology*; D005860:Germany, West; D008088:Listeriosis / Q000453:epidemiology / Q000662:veterinary*
Das Vorkommen von Listeria monocytogenes bei Rindern in Niedersachsen.