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Astrovirus infection in children in lagos, Nigeria
1Dept. of Microbiology, University of Lagos, Nigeria.
Insights
Astrovirus is a significant cause of acute gastroenteritis in young children in Lagos. This study found a high prevalence of astrovirus infection in children with diarrhea, particularly those under 12 months old.
Area of Science:
- Virology
- Public Health
- Pediatrics
Background:
- Astrovirus is a common cause of gastroenteritis in children worldwide.
- Data on astrovirus prevalence in Lagos, Nigeria, is limited.
Purpose of the Study:
- To investigate the prevalence of astrovirus in children under 5 years old in Lagos.
- To identify risk factors associated with astrovirus infection.
Main Methods:
- A cross-sectional study was conducted involving 215 children.
- Faecal samples were analyzed for astrovirus antigen using ELISA (Astrovirus RIDASCREEN®).
Main Results:
- Astrovirus was detected in 40.4% of children with diarrhea versus 11.1% in controls.
- Infection was more prevalent in children under 12 months (75%) and decreased with age (P=0.0470).
- Prevalence was slightly higher in males but not statistically significant.
Conclusions:
- Astrovirus is an important etiological agent of acute gastroenteritis in children in Lagos.
- Younger children, especially infants, are most vulnerable to astrovirus infection.
Abstract:
A preliminary investigation was conducted to screen for astrovirus in Lagos. Two hundred and fifteen (215) faecal samples collected from children under 5 years old with diarrhoea (161) and without diarrhoea (54) admitted at paediatric clinics in Lagos State were studied. The stool specimens were examined for the presence of human astrovirus antigen using a monoclonal antibody-based ELISA (Astrovirus RIDASCREEN(®) r-Biopharm, Germany) technique. Astrovirus was detected in 40.4 percent (65/161) of the diarrhoeal stools compared to 11.1 percent (6/54) of the control specimens. Astrovirus was found to infect younger children and about three quarter of the children infected was under 12 months of age. The prevalence of infection decreases with age group and was statistically significant (P = 0.0470). Although, prevalence of infection is more in males than females but this is not significant. This study shows that astrovirus is an important agent of acute gastroenteritis among children in Lagos state.
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