Evidence map›Paper›PMID 29197401›Full record

ArticleBMC veterinary research2017

Neglected zoonotic agents in cattle abortion: tackling the difficult to grow bacteria.

Sara Vidal, Kristel Kegler, Gilbert Greub, Sebastien Aeby, Nicole Borel, Mark P Dagleish, Horst Posthaus, Vincent Perreten, Sabrina Rodriguez-Campos

Open access · goldAbstract read
In one paragraph

Article in BMC veterinary research, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 1 pooled it
4.0field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

36 citing papers in PubMed, 1 synthesis or guideline pooled it, 58 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Molecular detection of bacterial zoonotic abortive agents from ruminants in Turkey.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2024
    Article
  11. Laboratory investigation of causes of bovine abortion and stillbirth in the Republic of Korea, 2014-2020.Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc · 2024
    Article
  12. Seroprevalence ofHeliyon · 2024
    Article
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  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Serological Investigation of BovineArchives of Razi Institute · 2022
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 4 institutions in 2 countries.

Sara VidalInstitute of Veterinary Bacteriology, Vetsuisse Faculty, University of Bern, Laenggassstrasse 122, CH-3012, Bern, Switzerland.
Kristel KeglerInstitute of Animal Pathology, Vetsuisse Faculty, University of Bern, Laenggassstrasse 122, CH-3012, Bern, Switzerland.
Gilbert GreubInstitute of Microbiology, University Hospital Center and University of Lausanne, Bugnon 48, CH-1011, Lausanne, Switzerland.
Sebastien AebyInstitute of Microbiology, University Hospital Center and University of Lausanne, Bugnon 48, CH-1011, Lausanne, Switzerland.
Nicole BorelInstitute of Veterinary Pathology, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse 270, CH - 8057, Zurich, Switzerland.
Mark P DagleishMoredun Research Institute, Pentlands Science Park, Bush Loan, Penicuik, Edinburgh, Scotland, EH26 0PZ, UK.
Horst PosthausInstitute of Animal Pathology, Vetsuisse Faculty, University of Bern, Laenggassstrasse 122, CH-3012, Bern, Switzerland.
Vincent PerretenInstitute of Veterinary Bacteriology, Vetsuisse Faculty, University of Bern, Laenggassstrasse 122, CH-3012, Bern, Switzerland.
Sabrina Rodriguez-CamposInstitute of Veterinary Bacteriology, Vetsuisse Faculty, University of Bern, Laenggassstrasse 122, CH-3012, Bern, Switzerland. sabrina.rodriguez@vetsuisse.unibe.ch.ORCID http://orcid.org/0000-0002-1159-484X
University of Bern · CHUniversity of Lausanne · CHMoredun Research Institute · GBUniversity of Zurich · CH

Funding

Swiss Federal Food Safety and Veterinary Office 1.14.07
6 · The paper itself

Abstract

backgroundCoxiella burnetii, Chlamydia abortus and Leptospira spp. are difficult to grow bacteria that play a role in bovine abortion, but their diagnosis is hampered by their obligate intracellular lifestyle (C. burnetii, C. abortus) or their lability (Leptospira spp.). Their importance is based on the contagious spread in food-producing animals, but also as zoonotic agents. In Switzerland, first-line routine bacteriological diagnostics in cattle abortions is regulated by national law and includes only basic screening by staining for C. burnetii due to the high costs associated with extended spectrum analysis. The aim of this study was to assess the true occurrence of these zoonotic pathogens in 249 cases of bovine abortion in Switzerland by serology (ELISA for anti-C. burnetii and C. abortus antibodies and microscopic agglutination test for anti-Leptospira spp. antibodies), molecular methods (real-time PCR and sequencing of PCR products of Chlamydiales-positive cases), Stamp's modification of the Ziehl-Neelsen (mod-ZN) stain and, upon availability of material, by histology and immunohistochemistry (IHC).

resultsAfter seroanalysis the prevalence was 15.9% for C. burnetii, 38.5% for C. abortus and 21.4% for Leptospira spp. By real-time PCR 12.1% and 16.9% of the cases were positive for C. burnetii and Chlamydiales, respectively, but only 2.4% were positive for C. burnetii or Chlamydiales by mod-ZN stain. Sequencing of PCR products of Chlamydiales-positive cases revealed C. abortus in 10% of cases and the presence of a mix of Chlamydiales-related bacteria in 5.2% of cases. Pathogenic Leptospira spp. were detected in 5.6% of cases. Inflammatory lesions were present histologically in all available samples which were real-time PCR-positive for Chlamydiales and Leptospira spp. One of 12 real-time PCR-positive cases for C. burnetii was devoid of histological lesions. None of the pathogens could be detected by IHC.

conclusionMolecular detection by real-time PCR complemented by histopathological analysis is recommended to improve definitive diagnosis of bovine abortion cases and determine a more accurate prevalence of these zoonotic pathogens.

Indexed as

Aborted FetusAbortion, VeterinaryAnimalsCattleCattle DiseasesChlamydiaChlamydia InfectionsCoxiella burnetiiEnzyme-Linked Immunosorbent AssayLeptospiraLeptospirosisQ FeverReal-Time Polymerase Chain ReactionSwitzerlandZoonosesBovine abortionChlamydialesCoxiella burnetiiLeptospira spp.Zoonosis

Identifiers

PMID29197401
PMCPMC5712085
OpenAlexW2771591897

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.