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Rotavirus electropherotypes in Malaysian children.
1Department of Medical Microbiology and Immunology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur.
Canadian Journal of Microbiology
|September 1, 1992
Summary
This study analyzed rotavirus in Malaysian children, finding diverse strains with distinct patterns. Short-pattern rotaviruses were linked to older children and specific symptoms, impacting diarrheal disease epidemiology.
Area of Science:
- Virology
- Epidemiology
- Public Health
Background:
- Rotavirus is a leading cause of severe diarrheal disease in children globally.
- Understanding rotavirus molecular epidemiology is crucial for disease control and prevention strategies.
- Previous studies in Malaysia have provided insights into rotavirus strains, but continuous surveillance is needed.
Purpose of the Study:
- To investigate the molecular epidemiology of group A rotavirus in hospitalized diarrheic children in Malaysia.
- To characterize the diversity of rotavirus electropherotypes and identify predominant strains.
- To explore associations between rotavirus electropherotypes and clinical features, including age and symptoms.
Main Methods:
- A 12-month prospective study involving collection and analysis of fecal samples from 973 hospitalized diarrheic children.
- Polyacrylamide gel electrophoresis (PAGE) was used to detect and classify rotaviruses and their electropherotypes.
- Statistical analysis was performed to determine associations between electropherotypes and clinical data.
Main Results:
- Rotavirus was detected in 28% (268/973) of the fecal samples, with all isolates identified as group A rotaviruses.
- Twenty-two distinct rotavirus electropherotypes were identified, predominantly long-pattern (91.5%) and a smaller proportion of short-pattern (8.5%).
- One long-pattern electropherotype was the predominant strain (71.1%). Short-pattern electropherotypes showed a significant association with infection in older children, and specific electropherotypes correlated with vomiting and diarrhea duration.
Conclusions:
- The study highlights the significant diversity of rotavirus electropherotypes circulating in Malaysian children.
- The predominant strain and temporal variations in electropherotype prevalence provide valuable epidemiological data.
- Findings underscore the importance of molecular surveillance for understanding rotavirus transmission dynamics and clinical associations.