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Published on: July 22, 2012
Molecular Epidemiology of Enteric Adenovirus Gastroenteritis in under-Five-Year-Old Children in Iran
Anahita Sanaei Dashti1, Pedram Ghahremani2, Tayebeh Hashempoor3
1Shiraz HIV/AIDS Research Center, Shiraz University of Medical Sciences, Shiraz 7193613311, Iran.
Insights
Human adenovirus (HAdV)-40 and HAdV-41 are significant causes of acute gastroenteritis in Iranian children. Early detection using PCR aids in managing the illness and preventing unnecessary antibiotic use.
Area of Science:
- Pediatrics
- Virology
- Epidemiology
Background:
- Acute gastroenteritis is a leading cause of illness and death in young children globally.
- Human adenovirus (HAdV) types 40 and 41 are common pathogens in pediatric gastroenteritis.
Purpose of the Study:
- To determine the prevalence of HAdV-40 and HAdV-41 in hospitalized children with gastroenteritis in Iran.
- To identify the etiological role of these viruses in pediatric acute gastroenteritis.
Main Methods:
- A cross-sectional epidemiological study involving 2682 fecal specimens from children under 5 years old.
- Samples collected from five pediatric centers in Iran between February 2012 and February 2013.
- Polymerase chain reaction (PCR) used to detect HAdV-40 and HAdV-41.
Main Results:
- HAdV-40 and HAdV-41 were detected in 5.18% (132/2682) of children with diarrhea.
- Prevalence was significantly higher (58.3%) in infants under 12 months.
- The male to female ratio was 1.7.
Conclusions:
- HAdV-40 and HAdV-41 are significant etiological agents of acute gastroenteritis in Iranian children.
- PCR offers a rapid diagnostic method, potentially leading to better patient outcomes and reduced antibiotic use.
Abstract:
Background. Acute gastroenteritis is one of the major sources of morbidity and mortality among young children in developed and developing countries. The aim of this study was to determine the prevalence of human adenovirus- (HAdV-) 40 and HAdV-41 in children hospitalized with gastroenteritis in five different health centers of Iran. Methods. In a cross-sectional epidemiological study, we studied 2682 fecal specimens that were collected from children under the age of 5 years in five educational and therapeutic pediatric centers in Iran from February 2012 to February 2013. Samples were tested for HAdV-40 and HAdV-41, using a specific pair of primers in polymerase chain reaction (PCR) method. Results. HAdV-40 and HAdV-41 were detected in 132 (5.18%) of the patients with diarrhea. A significantly higher prevalence of HAdV-40 and HAdV-41 (58.3%) was observed in children under 12 months of age, compared to other age groups. The male to female ratio was 1.7. Conclusion. The results of this study demonstrated that HAdV-40 and HAdV-41 could be considered etiological agents for acute gastroenteritis among children in Iran. The PCR as a rapid test may increase the chance for a relatively mild course of the disease followed by a complete recovery and avoiding administration of unnecessary antibiotics.
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