Chinese researchers are testing mixing two COVID-19 vaccines developed by CanSino Biologics (6185.HK) and a unit of Chongqing Zhifei Biological Products (300122.SZ) respectively, according to clinical trial registration data.
Chinese researchers are testing mixing two COVID-19 vaccines developed by CanSino Biologics (6185.HK) and a unit of Chongqing Zhifei Biological Products (300122.SZ) respectively, according to clinical trial registration data.
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