Technician holds tray of eggs in inoculation area of Sinovac Biotech Ltd. during production of vaccine for the H1N1 flu virus in Beijing
A technician holds a tray of eggs in the inoculation area of Sinovac Biotech Ltd., a Chinese vaccine making company, during production of a vaccine for the H1N1 flu virus in Beijing June 14, 2009. Vaccine makers germinate the virus in fertilized chicken eggs in a process that can take four to six months. REUTERS/Christina Hu (CHINA HEALTH BUSINESS IMAGES OF THE DAY)
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