Evidence map›Paper›PMID 22904055›Full record

ArticleApplied and environmental microbiology2012

Differences in the fecal concentrations and genetic diversities of Campylobacter jejuni populations among individual cows in two dairy herds.

Delphine Rapp, Colleen M Ross, Eve J Pleydell, Richard W Muirhead

Open access · greenAbstract read
In one paragraph

Article in Applied and environmental microbiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
4.8field-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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 37 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. A Review of the Human Health Risks from Microbial Hazards in Recreational Beach Sand.International journal of environmental research and public health · 2025
    Review
  4. Article
  5. The Transmission ofPathogens (Basel, Switzerland) · 2024
    Article
  6. Article
  7. Review
  8. Zoonotic Transmission ofFrontiers in microbiology · 2022
    Article
  9. Contamination Sources and Transmission Routes forPathogens (Basel, Switzerland) · 2021
    Article
  10. Article
  11. Article
  12. Journal of preventive medicine and hygiene · 2017
    Review
  13. Article
  14. Article
  15. Seasonal Variability of ThermophilicItalian journal of food safety · 2016
    Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. The role of environmental reservoirs in human campylobacteriosis.International journal of environmental research and public health · 2013
    Review
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

4 authors at 2 institutions in 1 country.

Delphine RappFood and Bio-based Products, AgResearch, Hamilton, New Zealand. Delphine.Rapp@agresearch.co.nz
Colleen M Ross
Eve J Pleydell
Richard W Muirhead
AgResearch · NZMassey University · NZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Dairy cows have been identified as common carriers of Campylobacter jejuni, which causes many of the human gastroenteritis cases reported worldwide. To design on-farm management practices that control the human infection sourced from dairy cows, the first step is to acquire an understanding of the excretion patterns of the cow reservoir. We monitored the same 35 cows from two dairy farms for C. jejuni excretion fortnightly for up to 12 months. The objective was to examine the concentration of C. jejuni and assess the genetic relationship of the C. jejuni populations excreted by individual cows. Significant differences (P < 0.01) in C. jejuni fecal concentration were observed among the 35 cows, with median concentrations that varied by up to 3.6 log(10) · g(-1) feces. A total of 36 different genotypes were identified from the 514 positive samples by using enterobacterial repetitive intergenic consensus (ERIC)-PCR. Although 22 of these genotypes were excreted by more than one cow, the analysis of frequencies and distribution of the genotypes by model-based statistics revealed a high degree of individuality in the C. jejuni population in each cow. The observed variation in the frequency of excretion of a genotype among cows and the analysis by multilocus sequence typing (MLST) of these genotypes suggest that excretion of C. jejuni in high numbers is due to a successful adaptation of a particular genotype to a particular cow's gut environment, but that animal-related factors render some individual cows resistant to colonization by particular genotypes. The reasons for differences in C. jejuni colonization of animals warrant further investigation.

Indexed as

Bacterial SheddingGenetic VariationAnimalsCampylobacter jejuniCattleFecesGenotypeMultilocus Sequence Typing

Identifiers

PMID22904055
PMCPMC3485710
OpenAlexW2131940992

What OpenQuestion holds

Textmetadata
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.