Scientists race to assess pandemic risk of new flu

Scientists race to assess pandemic risk of new flu

Reuters: Genetic sequence data on a deadly strain of bird flu show the virus has already acquired some mutations that might make it more likely to cause a human pandemic.

But there is no evidence so far that the H7N9 flu - now known to have infected nine people in China, killing three - is spreading from person to person, and there is still a chance it might peter out and never fully mutate into a human form of flu.

 

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