GAITHERSBURG, Md., Feb. 14, 2024 /PRNewswire/ -- YS Biopharma Co., Ltd. (Nasdaq: YS) ("YS Biopharma"), a global biopharmaceutical company dedicated to discovering, developing, manufacturing, and delivering new generations of vaccines and therapeutic biologics for infectious diseases and cancer, today announced that the Company received a requisition to convene an extraordinary general meeting ("EGM") of the Company (the "Requisition") from APEX Prospect Limited (the "Requisitioning Shareholder"), a register ...