万泰生物：鼻喷流感疫苗正在按计划开展药学研究和药效研究

Core Viewpoint - Wantai Biological Pharmacy's nasal spray influenza vaccine is progressing smoothly in both pharmaceutical and efficacy research as per the company's response to investor inquiries on the interactive platform [2] Group 1 - The nasal spray influenza vaccine is being developed according to the planned schedule [2] - The company is currently conducting both pharmaceutical research and efficacy studies for the vaccine [2]