Your Child's nose bacteria may boost flu shot power
NCT ID NCT06609811
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at how bacteria living in the nose and gut influence the immune response to a nasal flu vaccine in 201 children aged 6 to 17. Half got the vaccine right away, half waited 28 days. Researchers collected samples before and after vaccination to measure antibodies and bacterial changes. The goal was to understand if these natural microbes help or hinder vaccine effectiveness.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
Intranasal Influenza Live Attenuated Vaccine
What this could lead to
If successful, this could help design better flu vaccines by understanding how natural bacteria in the nose and gut influence immune protection.
What could go wrong
This is a completed Phase 4 study focused on observation, not testing a new treatment. Results may not lead to immediate changes in vaccine recommendations.
Disclaimer
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the original study
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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.
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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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
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Locations
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Haizhou District Center for Disease Control and Prevention
Lianyungang, Jiangsu, China