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Published on: July 22, 2012
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.
Abstract:
Rotaviruses were detected in 37% (331/895) of stool specimens collected from children with gastroenteritis attending three hospitals in Warsaw between January 1981 and March 1994. An analysis of rotavirus electrophoretypes circulating in Warsaw and Cracow, Poland, over 6 years showed that all 176 electrophoretypes encountered were characteristic of group A rotaviruses. Based on variations in the migration pattern of RNA genome segments when passed through polyacrylamide gels, 10 different electrophoretypes were identified: 86% were long patterns and 14% were short patterns. Mixed infections were observed in two cases.
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