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Campylobacter infections

Compared within 1 study that had both: 26 people with Campylobacter infections and 44 healthy people. 15 microbes are less common in people with Campylobacter infections, and 3 more common.

A difference is an association: it doesn’t mean these microbes cause, prevent or treat Campylobacter infections.

Phylum

Searching opens both lists and shows only matching rows.

Less common in Campylobacter infections · 15

Strongest first, then the biggest gap · Each figure is 10 people Strongest first · Each figure is 10 people
  1. Butyricimonas virosa in 1 study Healthy 30% Campylobacter infections 0%
  2. Blautia massiliensis (ex Durand et al. 2017) in 1 study Healthy 48% Campylobacter infections 3.8%
  3. Roseburia faecis in 1 study Healthy 61% Campylobacter infections 12%
  4. Ruminococcus bromii in 1 study Healthy 55% Campylobacter infections 7.7%
  5. Dysosmobacter welbionis in 1 study Healthy 73% Campylobacter infections 23%

More common in Campylobacter infections · 3

Strongest first, then the biggest gap · Each figure is 10 people Strongest first · Each figure is 10 people
  1. Campylobacter jejuni in 1 study Healthy 0% Campylobacter infections 50%
  2. Veillonella parvula in 1 study Healthy 4.5% Campylobacter infections 46%
  3. Escherichia coli in 1 study Healthy 55% Campylobacter infections 92%

Where these numbers come from

Studies
Only GMrepo projects that had people with the condition and healthy people, 10 or more of each. Numbers come from those studies, never from pooling.Sampled in the United States.
How common
The share of people whose sample has any of it, in the people with the condition and in the healthy people of those same studies. Tested within studies (Cochran–Mantel–Haenszel, corrected for testing many microbes); a difference counts when it is clear and meaningful (Cohen’s h of 0.2 or more).
Strength word
Counted by code from how many studies point the same way: Seen again and again (3 or more, none clearly the other way), Seen more than once (2, the majority), Seen once (1, listed last). Where studies disagree, a row isn’t listed.
Each study
Tap a row for every study’s own numbers, and for how much carriers have.
Analysis
Our analysis of GMrepo data. GMrepo on Data sources · Read the rules

Also compared · 101 microbes

Compared within studies that had both, but not listed above.

No meaningful difference · 101
PubMed · human studies and reviews first

Recent research

All research on it
  1. Animal study Science advances · 2026
    Microbiota-derived indole limits Campylobacter jejuni colonization by inhibiting respiration and metabolism.
    PubMed ↗
  2. Animal study Microbiome · 2026
    Recombinant LAB vector-based multicomponent vaccine against Campylobacter jejuni potentially promoting a healthier microbial balance in the poultry gut.
    PubMed ↗
  3. Animal study BMC microbiology · 2026
    Identification of Campylobactercoli as a key pathogen in Jinhua piglet diarrhea and its the probiotic control by Enterococcus faecium.
    PubMed ↗
  4. Gut microbes · 2026
    Immunoglobulin A protease from Sutterella wadsworthensis modifies outcome of infection with Campylobacter jejuni and is associated with microbiome diversity.
    PubMed ↗
  5. Infection and immunity · 2022
    Effect of Probiotic E. coli Nissle 1917 Supplementation on the Growth Performance, Immune Responses, Intestinal Morphology, and Gut Microbes of Campylobacter jejuni Infected Chickens.
    PubMed ↗

Source: PubMed, U.S. National Library of Medicine · 14 linked papers, last 10 years