1. 
   Microbe

   Blastocystis NameName close to Blastocystidae
   4.9% of healthy people
2. 
   Microbe

   Blastocystis hominis NameName close to Blastocystidae
   under 1% of healthy people
3. 
   Microbe

   Blastocystis sp. subtype 1 Unnamed strain NameName close to Blastocystidae
   under 1% of healthy people
4. 
   Microbe

   Blastocystis sp. subtype 8 Unnamed strain NameName close to Blastocystidae
   under 1% of healthy people
5. 
   Microbe

   Blastocystis sp. subtype 2 Unnamed strain NameName close to Blastocystidae
   1.1% of healthy people
6. 
   Microbe

   Blastocystis sp. subtype 9 Unnamed strain NameName close to Blastocystidae
   under 1% of healthy people
7. 
   Microbe

   Blastocystis sp. subtype 3 Unnamed strain NameName close to Blastocystidae
   1.7% of healthy people
8. 
   Microbe

   Blastocystis sp. subtype 6 Unnamed strain NameName close to Blastocystidae
   under 1% of healthy people
9. 
   Microbe

   Blastocystis sp. subtype 4 Unnamed strain NameName close to Blastocystidae
   under 1% of healthy people
10. Research Microorganisms · 2019

    Blastocystis Colonization Is Associated with Increased Diversity and Altered Gut Bacterial Communities in Healthy Malian Children.

    Faecalibacterium prausnitzii

    MeaningAbout Blastocystidae
    PubMed ↗
11. 
    Microbe Pseudomonadota

    Blastomonas MeaningAbout Blastocystidae
12. Research mSystems · 2018

    Asymptomatic Intestinal Colonization with Protist Blastocystis Is Strongly Associated with Distinct Microbiome Ecological Patterns.

    Ruminococcus bromiiSegatella copri

    MeaningAbout Blastocystidae
    PubMed ↗
13. Research Biomedical journal · 2023

    Intestinal microbiota analysis of different Blastocystis subtypes and Blastocystis-negative individuals in Taiwan.

    Akkermansia muciniphilaCoprococcus eutactus

    MeaningAbout Blastocystidae
    PubMed ↗
14. Research Case reports in infectious diseases · 2026

    Blastocystis in a Liver Abscess: An Unusual Extraintestinal Location.

    Bacteroides fragilis

    MeaningAbout Blastocystidae
    PubMed ↗
15. Research Microorganisms · 2021

    Gut Microbiome Profiles in Colonizations with the Enteric Protozoa Blastocystis in Korean Populations.

    Enterococcus faecalis

    MeaningAbout Blastocystidae
    PubMed ↗
16. 
    Microbe Acidobacteriota

    Blastocatella MeaningAbout Blastocystidae
17. 
    Microbe Actinomycetota

    Blastococcus MeaningAbout Blastocystidae
18. Research Acta tropica · 2026

    The association of Blastocystis sp. ST3 with gram negative bacteria is altered by short-term purification strategies.

    Klebsiella pneumoniae

    MeaningAbout Blastocystidae
    PubMed ↗
19. Research Microbiome · 2019

    Interactions between a pathogenic Blastocystis subtype and gut microbiota: in vitro and in vivo studies.

    Bifidobacterium longum

    MeaningAbout Blastocystidae
    PubMed ↗
20. Research The Lancet. Microbe · 2021

    Do Prevotella copri and Blastocystis promote euglycaemia?

    Segatella copri

    MeaningAbout Blastocystidae
    PubMed ↗
21. Research Microbial pathogenesis · 2022 Observational

    Alteration of gut bacteria composition among individuals with asymptomatic Blastocystis infection: A case-control study.

    Bacteroides fragilis

    MeaningAbout Blastocystidae
    PubMed ↗
22. Research Nutrients · 2025

    Human Gut Microbiota Profiles Related to Mediterranean and West African Diets and Association with Blastocystis Subtypes.

    [Ruminococcus] torques

    MeaningAbout Blastocystidae
    PubMed ↗
23. 
    Microbe Acidobacteriota

    Blastocatellaceae MeaningAbout Blastocystidae
24. 
    Microbe Pseudomonadota

    Blastomonas aquatica MeaningAbout Blastocystidae
25. Research Diagnostic microbiology and infectious disease · 2023 Review

    Microbiota and parasite relationship.

    Faecalibacterium prausnitzii

    MeaningAbout Blastocystidae
    PubMed ↗
26. 
    Microbe Pseudomonadota

    Blastochloris MeaningAbout Blastocystidae
27. Research Gut pathogens · 2019

    The influence of probiotic bacteria and human gut microorganisms causing opportunistic infections on Blastocystis ST3.

    Lactococcus lactisEnterococcus faecium

    MeaningAbout Blastocystidae
    PubMed ↗
28. Research Medical and veterinary entomology · 2024 Animal study

    Isolation and comparative analysis of culturable bacterial communities associated with life stages, breeding and rearing substrates of Culicoides oxystoma Kieffer (Diptera: Ceratopogonidae) vector of bluetongue virus.

    Enterococcus faecium

    MeaningAbout Blastocystidae
    PubMed ↗
29. Research Parasites & vectors · 2022 Animal study

    Interactions between Blastocystis subtype ST4 and gut microbiota in vitro.

    Phocaeicola vulgatusBifidobacterium longumEscherichia coli

    MeaningAbout Blastocystidae
    PubMed ↗

Research: PubMed, U.S. National Library of Medicine · citations link to PubMed