Research into the H7N9 virus suggests the risk of contracting serious illness rises with age and that more people may be infected than the 105 cases reported, according to a study by the Hong Kong University.
via CNN.com - Top Stories http://edition.cnn.com/2013/04/23/world/asia/china-bird-flu-elderly-risk/index.html?eref=edition
via CNN.com - Top Stories http://edition.cnn.com/2013/04/23/world/asia/china-bird-flu-elderly-risk/index.html?eref=edition
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