How your immune system remembers the flu vaccine

Computational Models of Adaptive Immunity to Influenza

NIH-funded research University of Chicago · NIH-11262802

This project compares immune responses over time in adults who get yearly Flublok flu vaccine versus those who delay vaccination, using blood tests and computer models.

Quick facts

Grant typeU01 cooperative agreement
Study typeNIH-funded research
Funding institutionUniversity of Chicago NIH-funded
Lab location1 site (Chicago, United States)
Project IDNIH-11262802 on NIH RePORTER

What this research studies

If you join, you'll be randomly assigned to keep receiving the Flublok flu vaccine each year or to wait and get vaccinated later. Researchers will take blood samples over time to measure antibody levels and to map B and T cell types that help fight flu. They will compare people who make strong, long-lasting, broad immune responses to those who don't, and use computer and statistical models to understand why. The team will look at how past infections and vaccinations shape immune memory and response to future vaccines.

Who could benefit from this research

Good fit: Adults aged 21 and older who have prior Flublok vaccination history and are willing to provide blood samples and attend follow-up visits are ideal candidates.

Not a fit: People under 21, those unable to give blood or attend clinic visits, or those seeking immediate individual protection rather than contributing to research are unlikely to receive direct benefit.

Why it matters

Potential benefit: If successful, this work could help design vaccines or vaccination schedules that give longer-lasting and broader protection against influenza.

How similar studies have performed: Prior studies have identified antibody and T-cell markers linked to flu protection, but combining a repeat-vaccination trial with detailed immune-repertoire analysis and computational modeling is relatively novel.

Where this research is happening

Chicago, 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.