NIH study reveals inner workings of flu vaccine immunity

NCT ID NCT01191853

First seen Nov 01, 2025 · Last updated Apr 28, 2026 · Updated 29 times

Summary

This study aimed to understand how the immune system reacts to seasonal and H1N1 flu vaccines in healthy adults. Researchers collected blood and nasal samples from 203 NIH employees before and after vaccination. The goal was to learn more about the body's defense response, not to test the vaccines themselves.

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Contacts and locations

Locations

  • National Institutes of Health Clinical Center

    Bethesda, Maryland, 20892, United States

Conditions

Explore the condition pages connected to this study.