Scientists track immune battles against flu and COVID-19
NCT ID NCT06848309
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tracks the immune response of 300 people with confirmed flu or COVID-19, comparing those who were recently vaccinated to those who were not. Participants provide blood, saliva, and nasal samples over 6 months, and some may opt for a lung fluid sample via bronchoscopy. The goal is to understand how antibodies and immune cells change over time after infection.
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 research could improve understanding of how the immune system fights flu and COVID-19, potentially guiding future vaccine or treatment strategies.
What could go wrong
This is an observational study, not testing a new treatment. It will not directly benefit participants and may not lead to immediate medical advances.
Disclaimer
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This is a summary of
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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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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Washington University in Saint Louis Department of Emergency Medicine, Emergency Care Research Core
RECRUITINGSt Louis, Missouri, 63110, United States
Contact Phone: •••-•••-•••• Email: •••••@•••••