Characterization of rotaviral RNA isolated from children with gastroenteritis in Poland

Z Szczepaniak1, W Gut, Z Jarzabek

  • 1Department of Virology, National Institute of Hygiene, Warsaw, Poland.

Insights

Rotaviruses, a common cause of gastroenteritis in children, were identified in 37% of stool samples. Analysis revealed group A rotaviruses with distinct long and short electrophoretic patterns circulating in Poland.

Area of Science:

  • Virology
  • Pediatric Gastroenterology
  • Epidemiology

Background:

  • Rotaviruses are a leading cause of severe diarrheal disease in infants and young children globally.
  • Understanding the genetic diversity and circulation patterns of rotaviruses is crucial for disease control and vaccine development.

Purpose of the Study:

  • To investigate the prevalence and molecular characteristics of rotaviruses causing gastroenteritis in children in Warsaw, Poland.
  • To analyze the electrophoretic patterns of rotavirus strains circulating in Poland over a defined period.

Main Methods:

  • Stool specimens from children with gastroenteritis were collected and tested for rotavirus.
  • Rotavirus RNA was extracted and analyzed using polyacrylamide gel electrophoresis (PAGE) to determine electrophoretic patterns (electrophoretypes).
  • Data on prevalence and electrophoretic patterns were collected and analyzed over a 13-year period.

Main Results:

  • Rotaviruses were detected in 37% (331/895) of the collected stool specimens.
  • All 176 analyzed rotavirus electrophoretypes were characteristic of group A rotaviruses.
  • Ten distinct electrophoretic patterns were identified, with 86% classified as long patterns and 14% as short patterns.
  • Mixed rotavirus infections were identified in two cases.

Conclusions:

  • Group A rotaviruses were a significant cause of pediatric gastroenteritis in Warsaw during the study period.
  • The identified electrophoretic patterns provide insights into the molecular epidemiology of rotaviruses in Poland.
  • Further surveillance and characterization of rotavirus strains are warranted to inform public health strategies.