Bacterial, fungal, parasitological and pathological analyses of abortions in small ruminants from 2012-2016.

Schnydrig, Philipp; Vidal Lopez, Sara; Brodard, Isabelle; Frey, Caroline; Posthaus, Horst; Perreten, Vincent; Rodriguez, Sabrina (2017). Bacterial, fungal, parasitological and pathological analyses of abortions in small ruminants from 2012-2016. Schweizer Archiv für Tierheilkunde, 159(12), pp. 647-656. Huber 10.17236/sat00136

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INTRODUCTION Abortion in small ruminants presents a clinical and economic problem with legal implications regarding animal health and zoonotic risk by some of the abortive pathogens. Several bacteria, fungi and parasites can cause abortion, but cost-orientated routine diagnostics only cover the most relevant epizootic agents. To cover a broad-range of common as well as underdiagnosed abortifacients, we studied 41 ovine and 36 caprine abortions by Stamp's modification of the Ziehl-Neelsen stain, culture for classical and opportunistic abortive agents, real-time PCR for C. burnetii, C. abortus, pathogenic Leptospira spp., Toxoplasma gondii and Neospora caninum. When the dam's serum was available detection of antibodies against B. melitensis, C. burnetii, C. abortus and Leptospira spp. was performed. In 37 cases sufficient placental tissue was available for pathological and histopathological examination. From the 77 cases 11 (14.3%) were positive by staining whereas real-time PCR detected C. burnetii and C. abortus in 49.3% and 32.5% of the cases. Antibodies against C. abortus and Leptospira spp. (33.3 and 26.7%) were detected. In 23.4% a bacterial culturable pathogen was isolated. Fungal abortion was confirmed in 1.3% of cases. A single abortive agent was identified in 44.2% of the cases and in 31.2% multiple possible abortifacients were present. Our study shows that the highest clarification rate can only be achieved by a combination of methods and evidences the role that multi-infections play as cause of abortion.

Item Type:

Journal Article (Original Article)

Division/Institute:

05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP) > Institute of Parasitology
05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP) > Institute of Animal Pathology
05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP)
05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP) > Institute of Veterinary Bacteriology

Graduate School:

Graduate School for Cellular and Biomedical Sciences (GCB)

UniBE Contributor:

Schnydrig, Philipp; Vidal Lopez, Sara; Brodard, Isabelle; Frey, Caroline; Posthaus, Horst; Perreten, Vincent and Rodriguez, Sabrina

Subjects:

600 Technology > 630 Agriculture
500 Science > 570 Life sciences; biology

ISSN:

0036-7281

Publisher:

Huber

Language:

English

Submitter:

Sabrina Rodriguez Campos

Date Deposited:

20 Apr 2018 15:49

Last Modified:

20 Apr 2018 15:49

Publisher DOI:

10.17236/sat00136

PubMed ID:

29208582

Uncontrolled Keywords:

Abort Breitspektrum Kleinwiederkäuer Molekulardiagnostik Tierseuchen abortion broadspectrum epizootics molecular diagnostics small ruminants

URI:

https://boris.unibe.ch/id/eprint/107895

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