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Updated: Aug 16, 2026

Assays for the Specific Growth Rate and Cell-binding Ability of Rotavirus
Published on: January 28, 2019
[Epidemiology of rotavirus infections in the Federal District, Brazil]
Insights
Rotavirus, a common cause of diarrhea in young children, was detected in 20.27% of fecal samples. Subgroup II rotaviruses were most prevalent, particularly in children aged 6-24 months.
Area of Science:
- Pediatric Infectious Diseases
- Virology
- Gastroenterology
Context:
- Acute diarrhea is a significant health concern in infants and young children.
- Rotavirus is a leading viral pathogen responsible for severe gastroenteritis in this age group.
- Understanding rotavirus prevalence and characteristics is crucial for public health interventions.
Purpose:
- To determine the prevalence of rotavirus infection in young children with acute diarrhea.
- To characterize the rotavirus strains detected using polyacrylamide gel electrophoresis (PAGE).
- To investigate the association of rotavirus infection with age and season.
Summary:
- Rotavirus testing on 607 fecal samples from children aged 0-6 years with acute diarrhea revealed a prevalence of 20.27%.
- Polyacrylamide gel electrophoresis (PAGE) analysis identified rotaviruses in 123 samples, with 87% classified as subgroup II (long profile).
- Infection was most common in children aged 6-24 months (73.98%), with higher detection rates during the dry season (34.48%) and coldest months (June-July).
Impact:
- This study provides valuable epidemiological data on rotavirus in a specific pediatric population.
- Findings highlight the importance of age and seasonal factors in rotavirus transmission.
- Results can inform vaccination strategies and public health policies for rotavirus prevention and control.
Abstract:
Rotavirus testing was performed on fecal samples of 607 infants and young children aging from 0 to 6 years with acute diarrhoea between May 1986 and April 1990. Samples were analyzed by polyacrylamide gel electrophoresis (PAGE). Rotaviruses were detected in 123 samples (20.27%); from those, 107 (87.00%) were classified as subgroup II (long profile). Rotaviruses were not detected in the control group of healthy children, but it were present in 7.80% of the children hospitalized for other causes but acute diarrhoea. Most of the children with rotavirus infection ranged from 6 to 24 months of age (73.98%). The mean of positive cases during the rainy months (October to April) was of 9.60% and during the dry period was of 34.48%. The highest values were 53.17 and 73.27% in June and July, the coldest months of the year.
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