How changes in the spike protein of SARS-CoV-2 affect its transmission

Transmission of CoV-2 and the Impact of Spike Protein Evolution

['FUNDING_R01'] · WASHINGTON UNIVERSITY · NIH-10874383

This study is looking at how different versions of the COVID-19 virus spread from one person to another, using hamsters to see how well the virus can infect them and how their immune systems respond, which could help us understand why the virus keeps changing even with vaccines.

Quick facts

Phase['FUNDING_R01']
Study typeNih_funding
SexAll
SponsorWASHINGTON UNIVERSITY (nih funded)
Locations1 site (SAINT LOUIS, UNITED STATES)
Trial IDNIH-10874383 on ClinicalTrials.gov

What this research studies

This research investigates how different variants of the SARS-CoV-2 virus, particularly changes in its spike protein, influence the virus's ability to spread among individuals. By using a hamster model, the study aims to quantify the number of virus particles that can successfully infect a host and how the immune responses of both the donor and recipient affect this process. The research will also explore the role of innate immunity in the transmission of the virus, providing insights into how the virus evolves and spreads despite vaccination efforts.

Who could benefit from this research

Good fit: Ideal candidates for this research are individuals who have been exposed to SARS-CoV-2 or are at risk of infection, including those with varying immune responses.

Not a fit: Patients who are not at risk of COVID-19 infection or have already been vaccinated may not benefit directly from this research.

Why it matters

Potential benefit: If successful, this research could lead to improved strategies for controlling the transmission of COVID-19 and its variants.

How similar studies have performed: Other research has shown success in understanding viral transmission dynamics, but this specific approach using barcoded viruses in a hamster model is relatively novel.

Where this research is happening

SAINT LOUIS, 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.

View on NIH RePORTER →

Last reviewed 2026-05-15 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.