Letter: Leptospira hardjo with abortions in a group of heifers.
D000034:Abortion, Veterinary / Q000276:immunology*; D000818:Animals; D000907:Antibodies, Bacterial / Q000032:analysis*; D002417:Cattle; D002418:Cattle Diseases / Q000276:immunology*; D005260:Female; D007919:Leptospira / Q000276:immunology*; D007922:Leptospirosis / Q000662:veterinary; D011247:Pregnancy
D000907:Antibodies, Bacterial