Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 39 2 2010 06 15 45 51 R Hamkar Y Yahyapour M Noroozi K Nourijelyani S Jalilvand L Adibi S Vaziri AA Poor-Babaei A Pakfetrat A Pakfetrat R Savad-Koohi 2015 10 03 Background: The aim of the study was to determine the incidence of non-bacterial acute gastroenteritis associated with diar­rheal diseases in Mazandaran Province, northern Iran. Methods: A total of 400 symptomatic cases from patients with acute gastroenteritis from Mazandaran Province in Iran were screened using EIA method for the presence of rotavirus, adenovirus and astrovirus during 2005-2006. Chi-square tests were used for testing relationships between different variables. Results: Rotavirus, adenovirus and astrovirus were detected in 62%, 2.3%, and 3% of samples, respectively. The maximum rate of rotaviruses was detected in the <1-year-old age group, while minimum rate was found in the 10 years and older age group. Astrovirus and adenovirus were detected predominantly in the 2-5-year-old age group of children, with a prevalence of 8.3% and 3.5% respectively. All studied viral gastroenteritis peaked in the winter, and minimum rate were found in summer. Conclusion: Our statistical analyzes indicated that viral gastroenteritis, especially Rota-viral, had the highest number of occurrences in colder seasons notably in winter and more frequently were observed among younger children. https://ijph.tums.ac.ir/index.php/ijph/article/view/3116 https://ijph.tums.ac.ir/index.php/ijph/article/download/3116/2915