The occurrence of calicivirus in infants with acute gastroenteritis

Insights

Calicivirus was identified in hospitalized infants and young children with acute gastroenteritis. This study suggests calicivirus may be a significant cause of this common childhood illness.

Area of Science:

  • Pediatric Infectious Diseases
  • Virology
  • Gastroenterology

Background:

  • Acute gastroenteritis is a common illness in infants and young children.
  • Viral pathogens are frequently implicated in acute gastroenteritis.
  • The role of specific viruses, such as calicivirus, requires further investigation.

Purpose of the Study:

  • To investigate the prevalence of calicivirus in hospitalized infants and young children with acute gastroenteritis.
  • To characterize the morphology and physical properties of the detected calicivirus.
  • To assess the serologic response to calicivirus infection.

Main Methods:

  • A survey of 647 hospitalized infants and young children with acute gastroenteritis.
  • Detection of calicivirus in stool samples using electron microscopy.
  • Morphological characterization and buoyant density determination of the virus.
  • Serologic testing using immune electron microscopy (IEM) on paired sera.

Main Results:

  • Calicivirus was detected in 8 (1.2%) of the 647 patients.
  • The virus measured approximately 30 nm in diameter and exhibited a "star of David" morphology.
  • Buoyant density in cesium chloride was 1.38-1.40 gm/ml.
  • Serologic response was confirmed in patients shedding the virus.

Conclusions:

  • Calicivirus was identified as a potential cause of acute gastroenteritis in infants and young children.
  • The findings highlight the importance of considering calicivirus in pediatric gastroenteritis outbreaks.
  • Further research is warranted to fully understand the epidemiology and clinical impact of calicivirus in this age group.

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