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Why do so many strains of bird flu originate in China?
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August 6th, 2013
The latest strain of bird flu, H7N9, is now reported to have been transmitted from one person to another rather than just from poultry to people.
A few months ago it was called a serious threat, but it wasn’t spreading between people. A May 1st report said: “So far nearly all cases have been traced back to contact with poultry. If the virus adapts to spread readily between people it will pose a much greater threat and scientists warn that the virus is mutating rapidly.”
What is the reason that China is the place of origin for so many of these viruses and mutations?
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