title: Bovine leptospirosis: infection by the Hebdomadis serogroup and abortion-A herd study.
abstract: A possible relationship is demonstrated between infection of cattle by the Hebdomadis serogroup of Leptospira and abortion of undiagnosed aetiology. This association is based on (1) The occurrence of a much higher incidence of antibodies to serotype sejroe in herds with a history of undiagnosed abortion than in other groups of cattle tested. (2) A relationship between the incidence of cows with antibody titres to sejroe and the incidence of abortion of unknown aetiology in 29 herds during an 18 month model period.
mesh_terms: D000034:Abortion, Veterinary / Q000453:epidemiology* / Q000276:immunology; D000818:Animals; D000907:Antibodies, Bacterial / Q000032:analysis; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology* / Q000276:immunology; D005260:Female; D007919:Leptospira / Q000276:immunology; D007922:Leptospirosis / Q000453:epidemiology / Q000276:immunology / Q000662:veterinary*; D011247:Pregnancy; D012621:Seasons
chemical_list: D000907:Antibodies, Bacterial