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Clinical Trial Summary

This study will test if affordable air cleaning devices (box fans with a filter attached and/or ultraviolet light lamps) installed in classrooms can reduce the number of viral respiratory illnesses schoolchildren experience.


Clinical Trial Description

This cluster-randomized controlled trial in Bangladesh schools will examine whether low-cost air filtration and/or human-safe ultraviolet germicidal light interventions can reduce the incidence of schoolchildren's respiratory viral infections. The main study objectives are: 1. Pilot and optimize an intervention to filter classroom air. 2. Pilot and optimize an intervention to treat classroom air with ultraviolet light. 3. Assess the separate and combined effect of air filtration and ultraviolet light on the incidence of polymerase chain reaction (PCR) confirmed illness from respiratory viruses. Methods: The study will take place in 60 government primary schools in Dhaka, Bangladesh. Within each enrolled school, 5 classrooms of students in grades 3, 4 and 5 will be randomly assigned to receive: 1. Box fans with a filter attachment. 2. 220 nanometer (nm) wavelength ultraviolet light air cleaner lamps. 3. Both the box fans with a filter and the 220 nm ultraviolet lamps. 4. No device: a control group that receives no additional device ("standard of care"). Two classrooms within each school will be assigned as controls. Why does this matter?: Clarifying the impact of low-cost practical solutions could support the adoption of these strategies that could reduce influenza and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) transmission in schools in order to reduce the burden of respiratory illness in these communities. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT06247059
Study type Interventional
Source Stanford University
Contact Mahbubur Rahman
Phone +88 02 2222 77 001-10
Email Mahbubr@icddrb.org
Status Not yet recruiting
Phase N/A
Start date December 2024
Completion date March 2026

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