Bird Flu Surge in China Spurs H7N9 Pandemic Vaccine Preparations

Bird Flu Surge in China Spurs H7N9 Pandemic Vaccine Preparations

Doug Kanter/Bloomberg

Employees of Sinovac Biotech Ltd. move trays of the company's Panflu 1 H1N1 vaccine in Beijing on Sept. 4, 2009. Sinovac has the capacity to produce about 30 million to 40 million doses of flu vaccine annually.