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A. Epidemiology of group A Rotavirus infection after the introduction of monovalent vaccine in the National Immunization Program of Saudi Arabia.
Faculty
Medicine
Year:
2016
Type of Publication:
ZU Hosted
Pages:
Authors:
Ahmed Mohamed Mourad Asaad
Staff Zu Site
Abstract In Staff Site
Journal:
Clinical Microbiology Open Access Wiley
Volume:
5
Keywords :
, Epidemiology , group , Rotavirus infection after , introduction
Abstract:
This study aimed to investigate the prevalence of group A rotavirus (RVA) gastroenteritis and the distribution of the RVA genotypes as well as to determine a possible change in the age of occurrence of the RVA infection in the first 2 years after Rotarix® vaccine introduction in Saudi Arabia. This descriptive study included 850 hospitalized children <5 years of age with acute gastroenteritis (AG) between October 2013 and September 2015. Overall, 78 (9.2%) children were positive for RVA during the study period with a positivity rate ranging from 11.3% in the first year of the study to 6.8% in the second year. G1 (47.4%) was the predominant G type, followed by G2 (28.2%) and G9 (10.3%). The most common P type was P[8] (69.2%) followed by P[4] (25.6%). The decrease in the prevalence of G1P[8] from 51% to 37.1% was associated with an increase in the prevalence of G2P[4] from 21.6% to 33.3% during the 2-year study period. This study demonstrated a significant decrease in the prevalence of RVA-AG cases in the first 2-year period after vaccine introduction, especially in the age group between 1 and 12 months, and a reduction in the circulation of G1P[6]. The parallel rise and spread of G2P[4] in post-vaccination period might pose an impact to long-term vaccine efficacy. Continued surveillance studies in different Saudi regions are crucial to document the effectiveness of Rotarix® vaccine and evaluate the potential emergence of rare/novel RVA genotypes.
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Department Related Publications
Ashwak Mohamed Foad Abotaleb, "تاثير اعاده الرضاع علي الحاله الغذائية و المناعيه و الميكروبيه للاطفال المصابين بالاسهال المستمر دراسه متعددة المراحل", لايوجد, 1900
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