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The recent characteristics of influenza-related hospitalization in Japanese children

Shunsuke Watanabe1,2, Takayuki Hoshina3, Masumi Kojiro2

  • 1Department of Pediatrics, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan.

European Journal of Clinical Microbiology & Infectious Diseases : Official Publication of the European Society of Clinical Microbiology
|March 4, 2021
PubMed

Insights

This study analyzed influenza in 3741 Japanese children, finding respiratory symptoms common in outpatients. Influenza-induced febrile seizures (FS) were more prevalent in inpatients and occurred in older children.

Area of Science:

  • Pediatrics
  • Infectious Diseases
  • Epidemiology

Background:

  • Influenza remains a significant cause of childhood illness globally.
  • Understanding influenza epidemiology, especially severe cases and complications like neurological disorders, is crucial for public health.
  • Recent data on influenza hospitalization characteristics in Japanese children are needed.

Purpose of the Study:

  • To investigate the recent epidemiology and clinical characteristics of influenza-related hospitalizations in Japanese children.
  • To compare the characteristics of children hospitalized with influenza-induced febrile seizures (FS) to those with FS from other causes.

Main Methods:

  • Retrospective analysis of 3741 children diagnosed with influenza.
  • Inclusion of a control group of children hospitalized for febrile seizures (FS) due to non-influenza etiologies.
  • Comparison of demographic and clinical data between influenza patients and the control group.

Main Results:

  • Respiratory symptoms were the primary complaint for 92.8% of influenza outpatients.
  • Febrile seizures (FS) were the predominant symptom in 37.7% of influenza inpatients (58/154).
  • Children with influenza-induced FS were significantly older than those with FS from other causes (P <0.001).

Conclusions:

  • Influenza presents with diverse symptoms, with FS being a notable complication in hospitalized Japanese children.
  • Influenza-induced neurological complications, such as FS, require further investigation for a comprehensive understanding of severe influenza.
  • Age is a significant factor differentiating influenza-induced FS from FS caused by other etiologies in children.

Keywords:
Febrile seizuresGeographical differenceHospitalizationInfluenza virusOlder children

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