Evidence map›Paper›PMID 32087722›Full record

ArticleBMC veterinary research2020

Genomic-based identification of environmental and clinical Listeria monocytogenes strains associated with an abortion outbreak in beef heifers.

Katherine J Whitman, James L Bono, Michael L Clawson, John D Loy, Joseph M Bosilevac, Terrance M Arthur, Jeff D Ondrak

Open access · goldAbstract read
In one paragraph

Article in BMC veterinary research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
2.2field-weighted citation impact, top 14% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Investigation ofArchives of Razi Institute · 2025
    Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Co-Infection ofMicroorganisms · 2022
    Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Applied and environmental microbiology · 2021
    Article
  16. First Detection ofFrontiers in veterinary science · 2020
    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

7 authors at 2 institutions in 1 country.

Katherine J WhitmanUniversity of Nebraska-Lincoln, School of Veterinary Medicine and Biomedical Sciences, Great Plains Veterinary Educational Center, Clay Center, NE, 68933, USA. whitmankj@gmail.com.ORCID http://orcid.org/0000-0001-5156-5288
James L BonoUSDA ARS US Meat Animal Research Center, Clay Center, NE, 68933, USA. jim.bono@ars.usda.gov.
Michael L ClawsonUSDA ARS US Meat Animal Research Center, Clay Center, NE, 68933, USA.
John D LoyUniversity of Nebraska-Lincoln, School of Veterinary Medicine and Biomedical Sciences, Nebraska Veterinary Diagnostic Center, Lincoln, NE, 68583-0907, USA.
Joseph M BosilevacUSDA ARS US Meat Animal Research Center, Clay Center, NE, 68933, USA.
Terrance M ArthurUSDA ARS US Meat Animal Research Center, Clay Center, NE, 68933, USA.
Jeff D OndrakUniversity of Nebraska-Lincoln, School of Veterinary Medicine and Biomedical Sciences, Great Plains Veterinary Educational Center, Clay Center, NE, 68933, USA.
Roman L. Hruska U.S. Meat Animal Research Center · USUniversity of Nebraska–Lincoln · US

Funding

Great Plains Veterinary Educational Center NAUS Meat Animal Research Center NA
6 · The paper itself

Abstract

backgroundIn a beef cattle facility an outbreak of abortions occurred over a 36-day period and included samples from two aborted (non-viable) fetuses and 21 post-abortion clinical cases. There are numerous etiologies, including clinical listeriosis. At the species level, Listeria monocytogenes is ubiquitous in cattle production environments, including soil, feed, and occasionally water sources, and is a common enteric resident of cattle and other mammals. There are four genetically distinct lineages of L. monocytogenes (I-IV), with most lineage III and IV isolates obtained from ruminants. Definitive diagnosis of L. monocytogenes as a causative agent in disease outbreaks relies upon case identification, appropriate sample collection, and laboratory confirmation. Furthermore, clearly establishing a relationship between a pathogen source and clinical disease is difficult.

resultsOf the two fetal and 21 clinical case submissions, 19 were positive for L. monocytogenes. Subsequent culture for L. monocytogenes from water and silage sources identified both as potential origins of infection. Using whole-genome sequencing and phylogenetic analyses, clinical, water and silage L. monocytogenes strains grouped into two of four lineages. All water and silage strains, plus 11 clinical strains placed in lineage III, with identical or nearly identical genomic sequences. The remaining eight clinical strains placed in lineage I, with seven having nearly identical sequences and one distinctly different.

conclusionThree genetically distinct strains within two lineages of L. monocytogenes caused the abortion outbreak. The etiology of abortion in 11 cases was directly linked to water and silage contamination from a lineage III L. monocytogenes strain. The source of infection for the remaining abortion cases with two different strains from lineage I is unknown. This is the first report of L. monocytogenes genomics being used as part of an outbreak investigation of cattle abortion.

Indexed as

Abortion, VeterinaryAnimalsCattleDisease OutbreaksFemaleGenome, BacterialListeria monocytogenesListeriosisNebraskaPregnancySilageWater MicrobiologyWhole Genome SequencingCattle abortionListeriosisOutbreakSilageWhole-genome sequencing

Identifiers

PMID32087722
PMCPMC7036198
OpenAlexW3012033483

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.