title: Letter: Isolating Listeria monocytogenes.
mesh_terms: D000034:Abortion, Veterinary / Q000382:microbiology; D000818:Animals; D005260:Female; D008089:Listeria monocytogenes / Q000302:isolation & purification*; D008088:Listeriosis / Q000382:microbiology / Q000662:veterinary; D011247:Pregnancy; D012756:Sheep; D012757:Sheep Diseases / Q000382:microbiology