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COVID-19

Respiratory Viruses Remain Leading Cause of Acute Respiratory Tract Infections, Despite Disrupted Seasonality from COVID-19 Pandemic

Strategic Insights

— 1 min read

Researchers have found that respiratory viruses remain the leading cause of acute respiratory tract infections in both children and adults, with significant morbidity and healthcare burden, despite the COVID-19 pandemic's disruption of seasonal circulation patterns. A recent study published in Frontiers in Microbiology analyzed 748 nasopharyngeal swab samples collected between March 2020 and November 2024 to identify respiratory pathogens and assess changes in virus distribution during and after the pandemic across age groups. The findings highlight the critical need for ongoing surveillance and targeted interventions, especially in pediatric populations, to mitigate future respiratory viral disease burdens.

Key Takeaways:

  • Respiratory viruses were detected in 43.6% of samples, with significantly higher positivity in children (71.5%) compared to adults (40%).
  • The cohort comprised 60.4% males and 39.6% females, with 14.4% pediatric (0-18 years) and 85.6% adult patients.
  • The pandemic disrupted the seasonality of respiratory viruses, leading to reduced viral detection during lockdowns and unusual peaks in subsequent periods.
  • The study used multivariate logistic regression to assess viral positivity predictors and the Autoregressive Integrated Moving Average (ARIMA) time-series model to evaluate trends and predict respiratory virus activity through 2027.
  • The authors emphasize the critical need for ongoing surveillance and targeted interventions, especially in pediatric populations, to mitigate future respiratory viral disease burdens.

Statistics:

  • 43.6% of samples tested positive for respiratory viruses.
  • 71.5% of pediatric patients (0-18 years) tested positive for respiratory viruses, compared to 40% of adult patients.
  • 748 nasopharyngeal swab samples were collected between March 2020 and November 2024.
  • The cohort comprised 60.4% males and 39.6% females.
  • 14.4% of the cohort was pediatric (0-18 years), while 85.6% were adult patients.

Sources:

  • Temporal dynamics and forecasting of respiratory viral infections during and after the SARS-CoV-2 pandemic (2020-2027): a multiplex PCR and ARIMA-based study. Frontiers in Microbiology, 2025;16:1674529.
  • NewsRx. Research Data from Department of Medical Microbiology Update Understanding of COVID-19 [Temporal dynamics and forecasting of respiratory viral infections during and after the SARS-CoV-2 pandemic (2020-2027): a multiplex PCR and ARIMA-based study]. Pediatrics Week. November 1, 2025; p 179.

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