China bird flu crisis

Associated Press
Workers in protective clothing chat during a culling operation as authorities detected the new bird flu strain in pigeons being sold for meat at a wholesale market in Shanghai on Friday April 5, 2013. China announced a sixth death from a new bird flu strain Friday, while authorities carried out the slaughter of all poultry at a Shanghai market where the virus was detected in pigeons being sold for meat. (AP Photo) CHINA OUT

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The H7N9 flu has infected 108 people in China since it was first detected in March, according to the World Health Organization. The new strain of avian flu has killed 22 people among  confirmed cases.

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