SVA [SINOVAC BIOTECH] 6-K: Sinovac Biotech Receives Positive Decision on its Hepatitis
[Sinovac Biotech Receives Positive Decision on its Hepatitis A Vaccine from World Health Organization BEIJING, Dec. 22, 2017 /PRNewswire/ -- Sinovac Biotech Ltd. (Nasdaq: SVA) (the "Company" or "Sinovac"), a leading provider of biopharmaceutical products in China, announced today that it has received]