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Hepatitis C

Compared within 2 studies that had both: 102 people with hepatitis C and 114 healthy people. 1 genus is less common in people with hepatitis C, and none more common.

A difference is an association: it doesn’t mean these genera cause, prevent or treat hepatitis C. GMrepo reports this group at the genus level only, so these are genera, not species.

Searching opens both lists and shows only matching rows.

Less common in hepatitis C · 1

Strongest first, then the biggest gap · Each figure is 10 people Strongest first · Each figure is 10 people
  1. Allofournierella genus in 2 studies Healthy 30% hepatitis C 11%

More common in hepatitis C · 0

Strongest first, then the biggest gap · Each figure is 10 people Strongest first · Each figure is 10 people

None compared.

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 Egypt, Japan.
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 · 143 genera

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

Studies disagree · 6

No meaningful difference · 137
PubMed · human studies and reviews first

Recent research

All research on it
  1. Observational Liver international · 2026
    Portal Vein Tryptophan Pathway Analysis Reveals Gut-Mediated Inflammatory Pathway Predominance in HCV Infection.
    PubMed ↗
  2. Nature microbiology · 2022
    Longitudinal multi-omics analyses of the gut-liver axis reveals metabolic dysregulation in hepatitis C infection and cirrhosis.
    PubMed ↗
  3. Journal of gastroenterology and hepatology · 2020
    The relationship between oral-origin bacteria in the fecal microbiome and albumin-bilirubin grade in patients with hepatitis C.
    PubMed ↗

Source: PubMed, U.S. National Library of Medicine · 3 linked papers, last 10 years