Scientists track flu antibodies for years to build better vaccines

NCT ID NCT02511002

First seen Jun 27, 2026 · Last updated Jul 17, 2026 · Updated 1 time

Summary

This study follows 200 people who have had the flu to see how their immune system changes over two years. Participants give blood and nasal samples every three months. The goal is to learn how long antibodies last and how they change, which could help create more effective flu vaccines.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

What this could lead to
If successful, this study could help researchers design more effective flu vaccines by understanding how the body's immune response changes over time after infection.
What could go wrong
This is an observational study, not a treatment trial. It will not directly benefit participants and may not lead to immediate vaccine improvements.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • National Institutes of Health Clinical Center

    Bethesda, Maryland, 20892, United States