Without the phase III clinical trial, approvals for the Sinovac vaccine and other H5N1 vaccines are currently for production only, rather than direct vaccination.

由于没有第三阶段的临床试验，科兴公司的疫苗以及其他H5N1疫苗只是被批准进行生产而不是给人们直接接种。

When Yin Weidong, general manager of the vaccine developer Sinovac Biotech, established his company to develop a hepatitis A vaccine in 1992, he hadn't even heard the term 'biotech'.

当北京科兴生物制品有限公司总经理尹卫东在1992年建立公司研制一种甲型肝炎疫苗的时候，从事疫苗研发的他甚至连“生物技术”这个术语都未曾听说过。