Your smartwatch could spot the flu before you feel it
NCT ID NCT04772170
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study enrolls healthy adults who are already part of a respiratory virus challenge study at the NIH. Participants wear a smartwatch and use a smartphone to track temperature, heart rate, coughs, and other health signals. The goal is to see if these devices can detect subtle changes that indicate infection, potentially leading to earlier diagnosis.
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 lead to wearable-based early detection tools for respiratory infections like flu and COVID-19.
- What could go wrong
- This is an early observational study, not testing a treatment. The digital biomarkers may not prove reliable enough for real-world diagnosis.
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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National Institutes of Health Clinical Center
RECRUITINGBethesda, Maryland, 20892, United States
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