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  • Title: Rotavirus epidemiology and surveillance before vaccine introduction in Argentina, 2012-2014.
    Author: Degiuseppe JI, Reale EA, Stupka JA, Argentine Rotavirus Surveillance NetworkLaboratorio de Gastroenteritis Virales, Instituto Nacional de Enfermedades Infecciosas (INEI-ANLIS "Dr. Carlos G. Malbrán"), Ciudad Autónoma de Buenos Aires, Argentina..
    Journal: J Med Virol; 2017 Mar; 89(3):423-428. PubMed ID: 27487415.
    Abstract:
    Group A Rotavirus has been widely described as one of the most important infantile diarrheal pathogens worldwide. In Argentina, it is responsible for over 200,000 acute diarrhea cases and from 30 to 50 deaths annually in children under 5 years. The aim of this study is to analyze frequency, seasonality, age group distribution, and circulating genotypes based on data notified in the 2012-2014 period and in turn to assess the pre-vaccine scenario, considering that rotavirus vaccine was introduced in 2015. Data were taken from the Viral Diarrhea Notification module of the Argentine SNVS-SIVILA surveillance tool. Analyses of circulating genotypes were performed on rotavirus-positive stool specimens by conventional binary characterization of the outermost capsid genes. Overall data showed rotavirus detection in about 25% of samples tested, and higher rates in children under 2 years old were observed. Rotavirus positive cases were distributed according to a typical winter seasonal pattern. A heterogeneous regional pattern of prevalence was also observed, with higher rates detected in the North region. Genotype co-circulation and annual fluctuation were observed. In general, G1P[8], G2P[4], G3P[8], and G12P[8] were the most frequently detected genotypes. This study represents the last survey taken of a population considered to be naïve. J. Med. Virol. 89:423-428, 2017. © 2016 Wiley Periodicals, Inc.
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