title: [Isolation of micro-organisms of the species Listeria from raw milk intended for human consumption].
abstract: Refrigerated mixtures of raw milk provided by a dairy which was supplied by farms from west and central Spain were tested for the presence of Listeria microorganisms. A total of 95 samples were taken at regular intervals over a 16-month period. Listeria grayi was isolated from 89.5% of the samples, Listeria monocytogenes s. str. from 45.3%, Listeria innocua from 15.8%, Listeria welshimeri from 3.1%, and Listeria seeligeri from 1.05%. Listeria ivanovii, Listeria murrayi, and Listeria denitrificans were not isolated.
mesh_terms: D000818:Animals; D002417:Cattle; D003470:Culture Media; D005260:Female; D006801:Humans; D008087:Listeria / Q000254:growth & development / Q000302:isolation & purification*; D008892:Milk / Q000382:microbiology*; D013030:Spain; D013045:Species Specificity
chemical_list: D003470:Culture Media
vernacular_title: Isolation de micro-organismes du genre Listeria à partir de lait cru destiné à la consommation humaine.