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The Interplay Between Respiratory Syncytial Virus and Asthma Inception: Insights Gained From the COVID-19 Pandemic

Talia Amram1, Or A Duek2,3, Inbal Golan-Tripto4,5

  • 1The School of Medicine, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel.

Pediatric Pulmonology
|January 6, 2025
PubMed

Insights

Reduced respiratory syncytial virus (RSV) exposure in infancy did not lower asthma-related healthcare use. This suggests RSV may indicate a predisposition to asthma rather than cause it directly.

Area of Science:

  • Pediatric respiratory health
  • Epidemiology of infectious diseases
  • Asthma etiology

Background:

  • Respiratory syncytial virus (RSV) infection in infancy is linked to increased asthma risk.
  • Debate exists whether RSV causes asthma or indicates predisposition.
  • COVID-19 pandemic's social distancing reduced RSV, offering a unique research opportunity.

Purpose of the Study:

  • To compare asthma-related healthcare utilization (HCU) in children aged 1-3 years.
  • Comparing infants born during reduced RSV circulation (March-June 2020) to those born in prior years (2014-2017).

Main Methods:

  • Retrospective analysis of nationwide healthcare database records.
  • Utilized data from Clalit Healthcare Services in Israel.
  • Employed multivariate logistic regression and Bayesian analyses for asthma-related HCU.

Main Results:

  • Included 172,463 children (32,927 in the low-RSV group, 139,536 in the high-RSV group).
  • The low-RSV cohort showed no significant decrease in asthma-related HCU.
  • Some asthma surrogates indicated increased HCU in the low-RSV group compared to the high-RSV group.

Conclusions:

  • Reduced RSV exposure in the first year of life did not correlate with decreased asthma-related HCU.
  • Findings suggest RSV infection in infancy may be an indicator of underlying predisposition to asthma.
  • The direct causal link between RSV and asthma development requires further investigation.
Abstract

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