Pipeline makes progress towards commercialization as robust demand for YSJA rabies vaccine continues Gross margin increases to 80.3%; balance sheet remains strong GAITHERSBURG, Md., Aug. 16, 2023 — YS Biopharma Co., Ltd. (NASDAQ: YS) (“YS Biopharma” or the “Company”), a global biopharmaceutical company dedicated to discovering, developing, manufacturing, and delivering new generations of vaccines and therapeutic […]