Well water worries: UV filters tested to protect kids from diarrhea
NCT ID NCT04826991
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study looks at whether using a UV light filter on private well water can lower the chance of stomach infections in children under 5. About 900 families in Pennsylvania and New Jersey will either get a working UV filter or a fake one. Researchers will track how often kids get sick and test water and stool samples to understand the link between well water and illness.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
Ultraviolet (UV) light water treatment device
What this could lead to
If successful, this could show that treating well water with UV light reduces stomach infections in children, providing evidence to guide public health recommendations.
What could go wrong
This is an observational-style trial with a sham control, not a treatment study. The UV device may not significantly reduce illness, and results may not apply to other regions or water sources.
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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Temple University
Philadelphia, Pennsylvania, 19122, United States