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Using Bioluminescent Imaging to Investigate Synergism Between Streptococcus pneumoniae and Influenza A Virus in Infant Mice
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Influenza pneumonia

Elina Lahti1, Ville Peltola, Raimo Virkki

  • 1Department of Pediatrics, Turku University Hospital, Vähä-Hämeenkatu 1A3, 20500 Turku, Finland. elkrla@utu.fi

The Pediatric Infectious Disease Journal
|February 8, 2006
PubMed

Insights

Influenza pneumonia is uncommon in children, often presenting with fever and cough. While most cases are mild with low mortality, prompt diagnosis is key.

Area of Science:

  • Pediatrics
  • Infectious Diseases
  • Radiology

Background:

  • Influenza and pneumonia are common pediatric illnesses.
  • Limited research exists on influenza-related pneumonia in children.
  • This study addresses the frequency and characteristics of influenza pneumonia in pediatric patients.

Purpose of the Study:

  • To determine the incidence of laboratory-documented and radiologically confirmed influenza pneumonia in children.
  • To characterize the clinical presentation, laboratory findings, and radiographic features of pediatric influenza pneumonia.
  • To assess hospitalization rates, duration, complications, and mortality associated with influenza pneumonia in children.

Main Methods:

  • Retrospective analysis of pediatric patients treated at Turku University Hospital from 1980-2003.
  • Influenza A or B infection confirmed by antigen detection.
  • Chest radiographs reviewed for pneumonic infiltrates; clinical and lab data collected.

Main Results:

  • Pneumonia occurred in 14% of 936 children with influenza.
  • Fever and cough were most common; 47% lacked specific pneumonia symptoms.
  • Low white blood cell counts and C-reactive protein levels were frequent; hospitalization was 68% with a median of 2 days.

Conclusions:

  • Influenza pneumonia is diagnosed in a minority of pediatric influenza cases at a tertiary center.
  • Pediatric influenza pneumonia is generally a mild condition with low mortality.
  • Findings contrast with adult influenza pneumonia, highlighting its typically benign course in children.
Abstract

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