NIH-funded research R21 grant

Understanding how rat fleas respond to plague infection

Official title: Emerging understanding of the rat flea response to Yersinia pestis infection

Funded at Washington State University · NIH-10739323 · Data updated 2026-11-12

This study looks at how rat fleas react when they get infected with the plague bacteria, aiming to understand how they handle their blood meals and toxins, which could help us find better ways to prevent diseases spread by fleas.

Quick facts

Grant typeR21 grant
Study typeNIH-funded research
Funding institutionWashington State University
NIH-funded
Lab location1 site (Pullman, United States)
Project startNovember 11, 2022
Project endOctober 31, 2025
Funding year2024
Award (this year)$194,954
NIH project number5R21AI164730-02
Project IDNIH-10739323 on NIH RePORTER

Who could benefit from this research

Could help

Ideal candidates for this research are individuals living in areas where plague is endemic or those who have been exposed to fleas that may carry Yersinia pestis.

Less likely to help

Patients who do not live in or travel to regions where plague is a concern may not benefit from this research.

What this research studies

This research investigates the biological responses of rat fleas when infected with Yersinia pestis, the bacterium that causes plague. The study aims to uncover how the fleas process their blood meals and manage toxins during infection, which is crucial for developing new strategies to control flea-borne diseases. By examining the role of a specific factor called Ymt, the researchers hope to gain insights into the flea's immune response and its implications for disease transmission. This knowledge could lead to innovative methods for managing and preventing plague outbreaks.

Why it matters

Potential benefit: If successful, this research could lead to new strategies for controlling plague and other flea-borne diseases, ultimately protecting public health.

How similar studies have gone: While research on flea biology and vector control is ongoing, this specific investigation into the Ymt factor's role in flea responses to plague is relatively novel.

Where this research is happening

  • Washington State University
    Pullman, United States
    Active

Researchers

  • Principal investigator: Vadyvaloo, Viveka — Washington State University
  • Study coordinator: Vadyvaloo, Viveka

Related research

Other NIH-funded projects on the same topics.

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.
Last reviewed 2026-11-14 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.