A photographer takes a photo of a joint press conference by Chinese 

A photographer takes a photo of a joint press conference by Chinese health officials and World Health Organization representatives, from left, Deng Haihua, spokesman for China's Commission of Health and Family Planning, Feng Zhijian, head of the emergency office of China's Disease Control and Prevention Center or CDC,  Liang Wannian head of a Chinese government office in charge of H7N9 bird flu prevention control, Michael O'Leary, head of the WHO's office in China, and Sirenda Vong, the WHO's Emerging Infectious Diseases expert,  in Beijing, China, Monday, April 8, 2013. The World Health Organization is talking with the Chinese government about sending international experts to China to help investigate a new bird flu strain that has killed six. Most of the 21 people stricken so far got severely ill.   (AP Photo/Ng Han Guan)
Associated Press
A photographer takes a photo of a joint press conference by Chinese health officials and World Health Organization representatives, from left, Deng Haihua, spokesman for China's Commission of Health and Family Planning, Feng Zhijian, head of the emergency office of China's Disease Control and Prevention Center or CDC, Liang Wannian head of a Chinese government office in charge of H7N9 bird flu prevention control, Michael O'Leary, head of the WHO's office in China, and Sirenda Vong, the WHO's Emerging Infectious Diseases expert, in Beijing, China, Monday, April 8, 2013. The World Health Organization is talking with the Chinese government about sending international experts to China to help investigate a new bird flu strain that has killed six. Most of the 21 people stricken so far got severely ill. (AP Photo/Ng Han Guan)
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