Fever in respiratory virus infections

Insights

High fever is common in children hospitalized with respiratory virus infections like adenovirus and influenza. The fever

Area of Science:

  • Pediatric Infectious Diseases
  • Virology
  • Clinical Microbiology

Background:

  • Fever is a common symptom in pediatric respiratory infections.
  • Distinguishing viral from bacterial causes can be challenging based on fever alone.

Purpose of the Study:

  • To analyze the degree and duration of fever in children hospitalized with specific respiratory viral infections.
  • To compare fever patterns in viral infections with those in serious bacterial infections.

Main Methods:

  • Retrospective analysis of case records for 258 children.
  • Inclusion of infections caused by adenovirus, influenza A/B, parainfluenza, and respiratory syncytial virus.
  • Comparison with data from children diagnosed with meningitis, epiglottitis, sepsis, and urinary tract infections.

Main Results:

  • High fevers (>= 39.0°C) were frequent in adenovirus (68%), influenza A (84%), and influenza B (65%) infections.
  • Mean highest fever in viral infections (39.2°C) was similar to serious bacterial infections (39.3°C).
  • Fever duration ranged from 2.5 to 5.2 days, with 37% experiencing fever for 5+ days.

Conclusions:

  • High and prolonged fever are common in hospitalized children with respiratory virus infections.
  • Fever characteristics in these viral infections do not significantly differ from severe bacterial infections.
  • Clinical assessment should consider viral etiologies even with high and persistent fever.

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