Can a simple repellent shield kids from mosquito viruses?

NCT ID NCT05452447

Completed Prevention Sponsor: University of Notre Dame Source: ClinicalTrials.gov ↗

First seen Jun 26, 2026 · Last updated Jun 26, 2026

Summary

This large study tested a device called Mosquito Shield that releases a repellent (transfluthrin) to keep mosquitoes away. Nearly 7,000 children aged 4-16 in Sri Lanka took part. The goal was to see if the device reduces infections from viruses like dengue. Researchers tracked infections over two years by testing blood samples.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: Transfluthrin (a chemical repellent released from a passive device)
What this could lead to: If it works, this could provide a simple, low-cost way to protect entire communities from diseases like dengue and chikungunya.
What could go wrong: The trial is completed but results are not yet widely known. The repellent may not reduce infections enough to change public health policy, and effectiveness can vary by environment.

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.

arbovirus infection chikungunya dengue disease vector-borne disease Zika virus infectious disease

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

ARBOVIRUS INFECTIONS

Contacts and locations

Locations

Clinical Trials Unit

Ragama, West, 01010, Sri Lanka
Epidemiology Unit, Ministry of Health

Colombo, West, 00100, Sri Lanka

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