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Detection of the pandemic norovirus variant GII.4 Sydney 2012 in Rio Branco, state of Acre, northern Brazil da Silva, Luciana Damascena; Rodrigues, Evandro Leite; de Lucena, Maria Silvia Sousa; de Lima, Ian Carlos Gomes; de Sousa Oliveira, Darleise; Soares, Luana Silva; Mascarenhas, Joana D’Arc Pereira; da Costa Linhares, Alexandre & Gabbay, Yvone Benchimol Abstract Noroviruses (NoVs) are important cause of gastroenteritis in humans worldwide. Genotype GII.4 is responsible for the majority of outbreaks reported to date. This study describes, for the first time in Brazil, the circulation of NoV GII.4 variant Sydney 2012 in faecal samples collected from children aged less than or equal to eight years in Rio Branco, state of Acre, northern Brazil, during July-September 2012. Keywords norovirus; gastroenteritis; GII.4 variant

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