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The co-detection of SARS-CoV-2 variant with other respiratory virus has been extensively investigated. However, conclusive evidence remains elusive and conflicted. This study investigated the source- and age-dependent prevalence, incidence, and co-detection of multiple viral infections in children younger than 18 years old who presented with clinical symptoms indicative of respiratory infections during SARS-CoV-2 pandemic.

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Respiratory Viral Co-infection in SARS-CoV-2-Infected Children During the Early and Late Pandemic Periods.

Pediatr Infect Dis J

April 2025

Sections of Pediatric Emergency Medicine and Gastroenterology, Departments of Pediatrics and Emergency Medicine, Cumming School of Medicine, University of Calgary, Calgary, Canada.

Background: Knowledge regarding the impact of respiratory pathogen co-infection in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-infected children seeking emergency department care is limited, specifically as it relates to the association between SARS-CoV-2 viral co-infection and disease severity and factors associated with co-infection.

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