Mutating H7N9 bird flu may pose pandemic threat, scientists warn

March 11, 2015 6:31 PM

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LONDON (Reuters) - A wave of H7N9 bird flu in China that has spread into people may have the potential to emerge as a pandemic strain in humans, scientists said on Wednesday.

The H7N9 virus, one of several strains of bird flu known to be able to infect humans, has persisted, diversified and spread in chickens across China, the researchers said, fuelling a resurgence of infections in people and posing a wider threat.

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