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The occurrence of calicivirus in infants with acute gastroenteritis
Abstract:
Calicivirus was detected in 8 (1.2%) of 647 hospitalized patients during a survey of acute gastroenteritis in infants and young children, conducted between December 1974 and September 1977. Morphologically calicivirus was approximately 30 nm in diameter with an easily recognizable staining "star of David" configuration. Its buoyant density in cesium chloride was 1.38-1.40 gm/ml. The serologic response to calicivirus by immune electron microscopy (IEM) was demonstrated only in paired sera from patients who shed the virus in their stools. The results suggest that calicivirus might be a cause of acute gastroenteritis in infants and young children.
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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