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In 2013, the novel reassortant avian-origin influenza A (H7N9) virus was reported in China. Through enhanced surveillance, infection by the H7N9 virus in humans was first identified in Zhejiang Province. Real-time reverse-transcriptase-polymerase-chain-reaction (RT-PCR) was used to confirm the infection. Embryonated chicken eggs were used for virus isolation from pharyngeal swabs taken from infected...
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