Faster early tests for flea-borne typhus

Identification of diagnostic biomarkers for flea-borne typhus

['FUNDING_R21'] · UNIVERSITY OF TEXAS MED BR GALVESTON · NIH-11235857

This project searches for specific proteins to enable a quick blood test for people with flea-borne typhus.

Quick facts

Phase['FUNDING_R21']
Study typeNih_funding
SexAll
SponsorUNIVERSITY OF TEXAS MED BR GALVESTON (nih funded)
Locations1 site (GALVESTON, UNITED STATES)
Trial IDNIH-11235857 on ClinicalTrials.gov

What this research studies

You should know that researchers are hunting for bacterial proteins that appear early in the blood during flea-borne typhus. They have already found two promising proteins in lab and animal work that are nearly identical across the bacteria that cause murine and epidemic typhus. The team will use those proteins to build a proof-of-concept antibody-based test to detect infection before antibodies appear. If successful, the test could be developed for use in clinics to help diagnose patients who come in with fever and possible flea or rodent exposure.

Who could benefit from this research

Good fit: People with a recent fever and suspected exposure to fleas or rodents, or anyone with unexplained febrile illness suspected to be typhus, would be the most relevant candidates for sample donation or future testing.

Not a fit: People with unrelated medical conditions, confirmed alternative infections, or past (not current) typhus infections are unlikely to benefit from this diagnostic-focused work.

Why it matters

Potential benefit: A reliable early antigen test could help doctors diagnose typhus sooner, start treatment faster, and reduce complications and healthcare costs.

How similar studies have performed: Existing antibody tests typically work later in illness, so antigen-based early diagnostics are relatively novel, and the investigators' pilot data show promising candidate proteins but a clinical antigen test has not yet been proven.

Where this research is happening

GALVESTON, 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.