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Published on: July 22, 2012
Human rotavirus subgroups and severity of associated diarrhoea in Ghana
George E. Armah1, Hiroki Hori, Akwasi Anyanful
1Noguchi Memorial Institute for Medical Research, P. O. Box 25, University of Ghana, Legon, Ghana.
Insights
Human rotavirus (HRV) infections caused 16.3% of acute diarrhea cases in Ghanaian children. HRV was linked to severe diarrhea but less vomiting, with subgroup II and serotypes 1 and 4 being most common.
Area of Science:
- Pediatrics
- Virology
- Public Health
Background:
- Acute diarrhea is a leading cause of childhood illness globally.
- Rotavirus is a major viral pathogen responsible for severe diarrhea in infants and young children.
- Understanding local rotavirus epidemiology is crucial for developing effective control strategies.
Purpose of the Study:
- To determine the prevalence of human rotavirus (HRV) infection in children with acute diarrhea in Accra, Ghana.
- To identify the clinical characteristics associated with HRV infection.
- To characterize the HRV subgroups and serotypes prevalent in the study population.
Main Methods:
- A 12-month prospective study was conducted in two hospitals in Accra, Ghana.
- Stool samples were collected from children presenting with acute diarrhea.
- Human rotavirus infection was detected, and subgroup/serotype analysis was performed. RNA electrophoresis was used to analyze HRV strains.
Main Results:
- 16.3% of children with acute diarrhea were infected with HRV.
- HRV infection was significantly associated with severe diarrhea.
- Vomiting was less frequent in HRV-associated diarrhea compared to non-HRV diarrhea. Subgroup II HRV, particularly serotypes 1 and 4, was predominant. Seven distinct RNA electrophoretic patterns were observed.
Conclusions:
- Human rotavirus is a significant cause of acute diarrhea in children in Accra, Ghana.
- Clinical presentation varies, with HRV associated with severe diarrhea but less vomiting.
- Further research into HRV strains and their impact is warranted for public health interventions.
Abstract:
In a 12 month study of children with acute diarrhoea seeking medical care in 2 hospitals in Accra, Ghana, 16.3% were found to be infected with human rotaviruses (HRV). Vomiting and diarrhoea were the main symptoms observed. HRV infection was frequently associated with severe diarrhoea. Vomiting was however less frequent in HRV associated diarrhoea than in non HRV diarrhoea. No significant association was observed between the severity of dehydration and HRV infection. Subgroup II HRV was the predominant subgroup identified with the dominant serotypes being HRV serotypes 1 and 4. Poly-acrylamide gel electrophoresis of HRV RNAs isolated from 40 positive stool samples revealed the existence of 7 distinct electrophoretic migration patterns in the study population.
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