 BEIJING--BUSINESS WIRE--SINOVAC Biotech Ltd. NASDAQ: SVA Sinovac or the Company, a leading provider of biopharmaceutical products in China, announced a paper, titled A third dose of inactivated vaccine augments the potency, breadth, and duration of anamnestic responses against SARS-CoV-2, is available on medRxiv. The findings suggest a third dose of CoronaVac can induce a better neutralization breadth to variants of concern VOCs, including the Delta variant, a rapid immunologic 