Cited by 18Escherichia coli research studiesGut microbiota and healthRuminant Nutrition and Digestive Physiology

Associations between Escherichia coli O157 shedding and the faecal microbiota of dairy cows

Open access
Stenkamp‐Strahm, C., McConnel, C., Magzamen, S., Abdo, Z., Reynolds, S.·2018·Journal of Applied Microbiology

Abstract

AIMS: Dairy cattle shed pathogenic Escherichia coli O157 (O157) in faeces, playing a role in human exposure. We aimed to measure faecal microbial communities in early lactation dairy cattle, and model outcomes with O157 shedding metrics. METHODS AND RESULTS: Daily faecal samples were collected from 40 cattle on two Colorado dairies for five consecutive days, and characterized for O157. 16S rRNA gene sequencing was used to measure sample-level microbial communities. Alpha-diversity metrics were associated with O157 outcomes via regression modelling, adjusting for confounders. Differential abundance of taxa were identified between O157(+) and O157(-) samples and between shedding days of individuals, using matched Wilcoxon rank-sum tests, zero-inflated Gaussian (ZIG) regression and negative binomial regression. After removing an outlier, multi-day and intermittently shedding cows had lower average richness compared to those that never shed. ZIG modelling revealed Bacillus coagulans to be more abundant in O157(-) samples, while Moryella were more abundant in O157(+) samples. Negative binomial models and Wilcoxon tests revealed no differentially abundant taxa between O157(+) vs O157(-) samples, or between shedding days of individuals. CONCLUSIONS: Microbial diversity and some taxa may be influenced by or affect O157 shedding by dairy cattle. SIGNIFICANCE AND IMPACT OF THE STUDY: If future work corroborates these findings, dairy cow microbial community changes may be used to guide on-farm strategies that mitigate O157 dissemination, protecting the human food chain.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1111/jam.13679

Cites

66 of 66 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Differences in both the mucosa-associated microbiota of the rectoanal junction and fecal microbiota of cattle influence the shedding of the human pathogen Escherichia coli O157 in cattle feces.

    “Recently, differences in both the mucosa-associated microbiota of the rectoanal junction and fecal microbiota of cattle have been shown to influence the shedding of the human pathogen Escherichia coli O157 in cattle feces (Stenkamp-Strahm et al., 2018; Wang et al., 2018).”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Stenkamp‐Strahm, C., McConnel, C., Magzamen, S., Abdo, Z., & Reynolds, S.
Affiliations
  • College of Veterinary Medicine and Biomedical Sciences Colorado State University Fort Collins CO USA
  • Colorado State University (US)
Venue
Journal of Applied Microbiology
Published
2018-02-08
Volume
124
Issue
3
Pages
881-898
ISSN
  • 1364-5072 (ISSN-L)
  • 1365-2672
OpenAlex
W2777585519
Cited by
18
References
66
Citations by year
2025: 3 · 2024: 1 · 2023: 1 · 2022: 3 · 2021: 4 · 2020: 1 · 2019: 2 · 2018: 3
FWCI
1.26
Type
journal article
Language
en
Open access
Locations
  • Journal of Applied Microbiology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • U.S. Department of Agriculture (CRCFY2015; 1004896, 15‐9200‐0443CA)
  • Colorado State University
  • Centers for Disease Control and Prevention (5U54OH008085)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Endocrinology › Escherichia coli research studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Ruminant Nutrition and Digestive Physiology
Keywords
Escherichia coli O157, dairy cattle, fecal microbiota, bacterial shedding, microbial diversity, alpha diversity, Bacillus coagulans, early lactation, zoonotic transmission, 16S rRNA gene sequencing
MeSH terms
Gastrointestinal Microbiome, Animals, Cattle, Cattle Diseases, Escherichia coli Infections, Feces, Female, Escherichia coli O157

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review