BEIJING, Sept. 11 /Xinhua-PRNewswire/ -- Sinovac Biotech Ltd. (Amex: SVA - News), a leading China-based biopharmaceutical company focusing on human vaccine development, announced today that it has commenced vaccination of volunteers for its Phase II clinical research study of its pandemic influenza H5N1 vaccine. The Phase II clinical trial is a randomized double-blind study to assess the safety and efficacy of the pandemic influenza H5N1 vaccine. The trial started with 400 adult volunteers vaccinated with Pandemic Influenza whole viron H5N1 Vaccine. The initial result from this study is expected to be available by the end of 2007.
