Flu vaccine mystery: why some shots work better than others

NCT ID NCT07240922

First seen Nov 21, 2025 · Last updated May 18, 2026 · Updated 27 times

Summary

This study looks at how getting the flu vaccine year after year changes your body's immune response. Researchers will compare two types of flu vaccines in 600 healthy adults aged 22-50 in Hong Kong. The goal is to understand why some people respond better to the vaccine and why it sometimes fails, which could help make future flu shots more effective.

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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Contacts and locations

Locations

  • School of Public Health, The University of Hong Kong

    Hong Kong, Hong Kong, 00000, Hong Kong

Conditions

Explore the condition pages connected to this study.