How gut microbes move between people

Uncovering the rules of gut microbiome strain transmission

NIH-funded research Icahn School of Medicine at Mount Sinai · NIH-11252559

This project looks at how gut microbes are passed between family members and other people, especially from parents to children, to learn how that may affect long-term health.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionIcahn School of Medicine at Mount Sinai NIH-funded
Lab location1 site (New York, United States)
Project IDNIH-11252559 on NIH RePORTER

What this research studies

You would be asked to provide stool samples so researchers can compare the exact bacterial strains in your gut with those from family members and unrelated people. The team uses high-resolution genome sequencing to tell closely related strains apart and to track which strains stick around for years. They plan to include samples from infants, children, and adults and may examine cases like fecal microbiota transplants to see how whole communities transfer. The aim is to understand when and how microbes are shared so we can learn which ones might influence health over a lifetime.

Who could benefit from this research

Good fit: Ideal participants are parents and their children or adults willing to give stool samples over time, and people undergoing fecal microbiota transplant may also be included.

Not a fit: People with conditions unrelated to the gut microbiome or those unable to provide stool samples are unlikely to gain direct benefit from participating.

Why it matters

Potential benefit: If successful, this work could reveal which early-life and family-transmitted gut microbes shape long-term health and point to better prevention or microbiome-based therapies.

How similar studies have performed: Previous work shows mothers commonly pass gut microbes to infants and that fecal transplants transfer strains, but detailed, long-term strain-level tracking across families is still relatively new.

Where this research is happening

New York, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Last reviewed 2026-06-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.