title: Some population parameters of Leptospira interrogans serovar hardjo infection in sheep.
mesh_terms: D000818:Animals; D000907:Antibodies, Bacterial / Q000032:analysis; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology; D004739:England; D005260:Female; D007921:Leptospira interrogans / Q000276:immunology; D011247:Pregnancy; D012756:Sheep / Q000276:immunology; D012757:Sheep Diseases / Q000453:epidemiology*; D014852:Wales; D014895:Weil Disease / Q000453:epidemiology / Q000662:veterinary*
chemical_list: D000907:Antibodies, Bacterial