Understanding how the microbiome affects COVID-19 susceptibility and symptoms

Host-microbe interactions and SARS-CoV-2 susceptibility and symptoms in a novel human challenge model

NIH-funded research Duke University · NIH-10890852

This study is looking at how our gut bacteria and genes might affect how likely we are to get COVID-19 and how sick we might get from it, by safely exposing healthy adults to the virus to learn more about these factors.

Quick facts

Grant typeR21 grant
Study typeNIH-funded research
Funding institutionDuke University NIH-funded
Lab location1 site (Durham, United States)
Project IDNIH-10890852 on NIH RePORTER

What this research studies

This research investigates how the microbiome and host genetics influence the susceptibility to and severity of COVID-19. By using a human challenge model, researchers will expose healthy adults to the virus under controlled conditions to gather data on how different biological factors affect infection outcomes. The study aims to identify specific microbiome features and gene expression profiles that could inform future prevention strategies and treatments for COVID-19.

Who could benefit from this research

Good fit: Ideal candidates for this research are healthy adults aged 21 and older who have not been previously infected with or vaccinated against SARS-CoV-2.

Not a fit: Patients with a history of COVID-19 infection or vaccination may not benefit from this research.

Why it matters

Potential benefit: If successful, this research could lead to improved strategies for preventing and treating COVID-19 by identifying key biological factors that influence infection severity.

How similar studies have performed: Other research has shown promise in using human challenge models to study infectious diseases, indicating that this approach could yield valuable insights.

Where this research is happening

Durham, 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 2026-06-13 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.