Understanding how our bodies and germs affect COVID-19 risk and symptoms

Host-Microbe Interactions and SARS-CoV-2 Susceptibility and Symptoms in aNovel Human Challenge Model

NIH-funded research Arkansas Children's Hospital Res Inst · NIH-11291372

This research looks at how the tiny germs living in our airways and our own genes might make some healthy people more or less likely to get sick with COVID-19.

Quick facts

Grant typeR21 grant
Study typeNIH-funded research
Funding institutionArkansas Children's Hospital Res Inst NIH-funded
Lab location1 site (Little Rock, United States)
Project IDNIH-11291372 on NIH RePORTER

What this research studies

We want to understand why some people get COVID-19 easily or have worse symptoms, even when exposed to the same virus. This project uses information and samples from healthy adults who previously participated in a special study where they were carefully exposed to SARS-CoV-2, the virus that causes COVID-19. By studying their upper airway germs (microbiome) and their gene activity, we hope to find natural factors that protect against or increase the risk of infection. This knowledge could help us develop better ways to prevent COVID-19 and create more effective treatments and vaccines.

Who could benefit from this research

Good fit: This research uses data from healthy adults who previously participated in a controlled COVID-19 exposure study and had no prior infection or vaccination.

Not a fit: Patients who are currently ill with COVID-19 or those who have already been infected or vaccinated would not directly benefit from participating in this specific data analysis.

Why it matters

Potential benefit: If successful, this work could lead to new strategies for preventing COVID-19 infection and developing more targeted treatments and vaccines.

How similar studies have performed: This project builds upon a novel 'first-in-human' SARS-CoV-2 challenge study, providing a unique opportunity to study host factors under controlled conditions.

Where this research is happening

Little Rock, 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.