Evidence map›Paper›PMID 28850578›Full record

ArticlePloS one2017

The nasal microbiota of dairy farmers is more complex than oral microbiota, reflects occupational exposure, and provides competition for staphylococci.

Sanjay K Shukla, Zhan Ye, Scott Sandberg, Iris Reyes, Thomas R Fritsche, Matthew Keifer

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 13% 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

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 49 citations in OpenAlex.

  1. WORKbiota: A Systematic Review about the Effects of Occupational Exposure on Microbiota and Workers' Health.International journal of environmental research and public health · 2022
    Pooled it
  2. The role of dog keeping in the home microbiota and its impact on children's health.Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Frontiers in microbiomes · 2025
    Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Metagenomics reveals novel microbial signatures of farm exposures in house dust.medRxiv : the preprint server for health sciences · 2023
    Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. 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

6 authors at 3 institutions in 1 country.

Sanjay K ShuklaMolecular Microbiology Laboratory, Center for Human Genetics, Marshfield Clinic Research Institute, Marshfield, Wisconsin, United States of America.ORCID http://orcid.org/0000-0001-7267-8572
Zhan YeBiomedical Informatics Research Center, Marshfield Clinic Research Institute, Marshfield, Wisconsin, United States of America.
Scott SandbergNational Farm Medicine Center, Marshfield Clinic Research Institute, Marshfield, Wisconsin, United States of America.
Iris ReyesNational Farm Medicine Center, Marshfield Clinic Research Institute, Marshfield, Wisconsin, United States of America.
Thomas R FritscheDivision of Laboratory Medicine, Marshfield Clinic, Marshfield, Wisconsin, United States of America.
Matthew KeiferVA Puget Sound, Seattle, Washington, United States of America.
Marshfield Clinic · USCenter for Human Genetics · USVA Puget Sound Health Care System · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Allergic and autoimmune diseases had been attributed to lack of exposure to biodiversity, an important factor in regulating immune homeostasis in a healthy host. We posit that the microbiome of healthy dairy farmers (DF) will be richer than non-farmers (NF) living in urban settings due to exposure to a greater biodiversity in the dairy environment. However, no studies have investigated the relationships between microbiota of dairy farmers (DF) compared with urban non-farmers (NF). We compared the nasal and oral microbiota of dairy farmers (N_DF, O_DF, respectively) with nasal and oral microbiota of NF in the same geographical area. The N_DF showed high microbial diversity with hundreds of unique genera that reflected environmental/occupational exposures. The nasal and oral microbiomes clustered separately from each other using Principal Coordinate Analysis, and with DF harboring two-fold and 1.5-fold greater exclusive genera in their nose and mouth respectively, than did non-farmers. Additionally, the N_DF group had a lower burden of Staphylococcus spp. suggesting a correlation between higher microbial diversity and competition for colonization by staphylococci. The N_DF samples were negative for the mecA gene, a marker of methicillin-resistance in staphylococci. The lower burden of staphylococci was found to be independent of the abundance of Corynebacterium spp. Exposure to greater biodiversity could enhance microbial competition, thereby reducing colonization with opportunistic pathogens. Future studies will analyze whether exposure to livestock microbiomes offers protection from acute and chronic diseases.

Indexed as

FarmersOccupational ExposureAdultCorynebacteriumHumansMicrobiotaMiddle AgedMouthNasal CavityStaphylococcusYoung Adult

Identifiers

PMID28850578
PMCPMC5574581
OpenAlexW2752989654

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.