title: An outbreak of abortion in mares associated with Salmonella abortusequi infection.
abstract: An abortion outbreak occurred in a herd of 38 horses, 26 of which were pregnant mares. Twenty-one mares aborted between 5-10 months of gestation. In no case were there indications of impending abortion. Pathoanatomical, histopathological, virological and bacteriological examinations were carried out on 4 aborted fetuses. Histopathology identified Gram-negative bacteria compatible with salmonella in all 4 placentae. By subsequent bacteriological examination Salmonella abortusequi was isolated as the single causative agent in each case. Nonmotile Salmonella abortusequi with antigenic formula 4,12:-:- was isolated from one of the 4 fetuses. The described episode of equine abortion clearly indicates that Salmonella abortusequi has not been eradicated from Europe as previously thought.
authors.affiliation: Department of Microbiology, Veterinary Faculty, University of Zagreb, Croatia.
authors.forename: J
authors.initials: J
authors.lastname: Madić
authors.forename: D
authors.initials: D
authors.lastname: Hajsig
authors.forename: B
authors.initials: B
authors.lastname: Sostarić
authors.forename: S
authors.initials: S
authors.lastname: Curić
authors.forename: B
authors.initials: B
authors.lastname: Seol
authors.forename: T
authors.initials: T
authors.lastname: Naglić
authors.forename: Z
authors.initials: Z
authors.lastname: Cvetnić
mesh_terms: D000034:Abortion, Veterinary / Q000453:epidemiology / Q000382:microbiology*; D000818:Animals; D017523:Croatia / Q000453:epidemiology; D004196:Disease Outbreaks / Q000662:veterinary*; D005260:Female; D006734:Horse Diseases / Q000453:epidemiology / Q000382:microbiology* / Q000473:pathology; D006736:Horses; D009336:Necrosis; D010920:Placenta / Q000382:microbiology / Q000473:pathology; D011247:Pregnancy; D012475:Salmonella / Q000302:isolation & purification*; D012481:Salmonella Infections, Animal / Q000150:complications / Q000453:epidemiology / Q000473:pathology*