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.

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

  • Temple University

    Philadelphia, Pennsylvania, 19122, United States

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Other studies related to the condition(s) this trial covers.