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500 kids tracked daily to unlock secrets of winter viruses

NCT ID NCT06640387

Ongoing Knowledge-focused Sponsor: The Hospital for Sick Children Source: ClinicalTrials.gov ↗

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study follows 500 children under 18 who tested positive for flu, RSV, or COVID-19. Each child takes a daily nose swab for 14 days to measure how the virus levels change over time. Researchers also check if family members get sick. The goal is to understand when kids are most contagious and how these viruses spread at home and school, which could lead to smarter quarantine rules.

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 provide better guidelines on when children with respiratory infections are contagious, helping schools and families reduce spread.
What could go wrong
This is an observational study, not a treatment trial. It won't directly cure or prevent illness, and results may not apply to all settings or future virus strains.

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.

COVID-19 influenza Mycoplasma pneumoniae pneumonia Mycoplasmoides infection pertussis respiratory syncytial virus infectious disease

As listed by the trial registrant

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

BORDETELLA PERTUSSIS, WHOOPING COUGH INFLUENZA MYCOPLASMA PNEUMONIAE RSV INFECTION SARS-COV-2 INFECTION

Contacts and locations

Locations

  • The Hospital for Sick Children (SickKids)

    Toronto, Ontario, M5G 1X8, Canada

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