Clinical Features of Respiratory Tract Infections Associated with Parechovirus A in Pediatric Patients - Report - MDSpire

Clinical Features of Respiratory Tract Infections Associated with Parechovirus A in Pediatric Patients

  • By

  • Lars Høsøien Skanke

  • Inger Heimdal

  • Hilde Lysvand

  • Nina Moe

  • Sidsel Krokstad

  • Andreas Christensen

  • Kari Risnes

  • Svein Arne Nordbø

  • Henrik Døllner

  • April 20, 2026

  • 0 min

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Clinical Features of Respiratory Tract Infections Associated with Parechovirus A in Pediatric Patients

Overview

This study investigates the role of parechovirus A (PeV-A) in respiratory tract infections (RTIs) among pediatric patients. Findings indicate that PeV-A is often co-detected with other viruses and is primarily associated with upper RTIs such as pharyngitis and tonsillitis, without impacting disease severity in cases of co-infection.

Background

Respiratory tract infections are a significant cause of morbidity in children, and understanding the role of various pathogens is crucial for effective management. Parechovirus A (PeV-A) has emerged as a potential contributor to RTIs, yet its clinical significance, particularly in hospitalized children, remains poorly defined. This study aims to clarify the association between PeV-A and RTIs in pediatric populations.

Data Highlights

Study GroupPeV-A DetectionCo-detectionsClinical Manifestations
Hospital Study4.6% (15/323) single PeV-A95.4% (308/323) with other virusesPharyngitis, tonsillitis
Day-Care Study30 children with PeV-A8/10 with single PeV-APharyngitis, tonsillitis

Key Findings

  • Single PeV-A detection was associated with pharyngitis and tonsillitis in children.
  • 95.4% of PeV-A detections in hospitalized children were co-detected with other viruses, primarily RSV and HRV.
  • Multivariable logistic regression indicated a strong association between single PeV-A and upper RTIs (OR 11.3).
  • Presence of PeV-A did not affect clinical outcomes in children with co-detected RSV and HRV.
  • PeV-A was detected in 30 children attending day-care, with a significant number presenting with upper RTI symptoms.

Clinical Implications

Highlight the necessity for additional research on PeV-A's role in severe infections.

Conclusion

The findings highlight the need for careful interpretation of PeV-A detection in pediatric RTIs, emphasizing its role in mild infections while cautioning against over-attributing causality in more severe cases involving multiple pathogens.

References

  1. The Journal of Infectious Diseases, 2023 -- Clinical Characteristics and In-hospital Outcomes Associated With Respiratory Syncytial Virus vs Other Viral Acute Lower Respiratory Infections in Hospitalized Children Younger Than 2 Years
  2. Infection, 2024 -- Inflammatory Responses Mimicking Bacterial Infections in Pediatric Adenovirus Cases Result in Misuse of Antibiotics: Findings from a Multicenter Cohort Analysis
  3. Infection, 2024 -- Swift Identification of Acute Respiratory Infections in Children Using Point-of-Care and Multiplex Molecular Testing
  4. Infection, 2024 -- Clinical burden of acute respiratory infections in children < 5 years in the emergency room: results from the first season (2023/24) of the RISE study
  5. Emerging Infectious Diseases journal, 2024 -- Parechovirus A Circulation and Testing Capacities in Europe, 2015–2021
  6. Frontiers, 2026 -- Clinical manifestations in children with parechovirus A and respiratory tract infection
  7. CDC Guidance on Parechovirus A
  8. Frontiers in Pediatrics - Clinical Manifestations of PeV-A
  9. IDSA/PIDS 2026 Guidelines for the Management of Community-Acquired Pneumonia (CAP) in Infants and Children Older Than 3 Months of Age

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