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Rotavirus Infection in Brazilian Children with Acute Enteritis: A Seasonal Variation Study

José R. R. CoiroNúcleo Interdepartamental de Microscopia Electrónica (NIDEME), Instituto de Biociéncias, Universidade Federal do Rio Grande do Sul, 90.000—Porto Alegre, RS, Brazil

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M. Mercedes de A. BendatiNúcleo Interdepartamental de Microscopia Electrónica (NIDEME), Instituto de Biociéncias, Universidade Federal do Rio Grande do Sul, 90.000—Porto Alegre, RS, Brazil

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Alcides J. de Almeida NetoNúcleo Interdepartamental de Microscopia Electrónica (NIDEME), Instituto de Biociéncias, Universidade Federal do Rio Grande do Sul, 90.000—Porto Alegre, RS, Brazil

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M. Cristina F. HeuserNúcleo Interdepartamental de Microscopia Electrónica (NIDEME), Instituto de Biociéncias, Universidade Federal do Rio Grande do Sul, 90.000—Porto Alegre, RS, Brazil

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Véra L. VasconcellosNúcleo Interdepartamental de Microscopia Electrónica (NIDEME), Instituto de Biociéncias, Universidade Federal do Rio Grande do Sul, 90.000—Porto Alegre, RS, Brazil

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Enzyme immunoassay (EIA) and electron microscopy (EM) were utilized to investigate the presence of rotavirus in feces of 388 children with acute enteritis hospitalized at the Hospital Santa Casa de Misericórdia in Porto Alegre, Brazil. The survey covered 12 months, beginning in July 1981. There were 162 rotavirus-positive cases (41.8%). During the period of the study rotavirus was detected throughout the year, but there was a striking seasonal variation (78.1% of cases) during January 1982.

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