A lab technician works at the Chinese biotech firm Sinovac in Beijing on August 24, 2009. Up-and-coming Chinese biotech firm Sinovac, already listed in the US, could get a significant boost abroad after securing government approval to produce its one-dose swine flu vaccine. China on September 3, 2009 granted approval to the country’s first homegrown swine flu vaccine, which producer Sinovac says is effective after only one dose. AFP PHOTP / Peter PARKS (Photo credit should read PETER PARKS/AFP/Getty Images)