Gut bugs may boost flu vaccine power
NCT ID NCT05239403
First seen Jun 27, 2026 · Last updated Aug 13, 2026 · Updated 2 times
Summary
This study looks at whether the bacteria in your gut and what you eat can influence how well the flu vaccine works. Researchers will collect blood and stool samples from 74 adults before and after they get their flu shot. The goal is to find links between gut microbiome diversity and a stronger immune response.
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 could help design personalized diets or probiotics to improve flu vaccine effectiveness.
- What could go wrong
- This is an observational study with only 74 participants, so results may not apply to everyone. It does not test any treatment.
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
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M D Anderson Cancer Center
Houston, Texas, 77030, United States
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