医药生物行业周报（9月第4周）：流感进入活跃期-20250929

Investment Rating - The report does not explicitly state an investment rating for the industry [2] Core Insights - The pharmaceutical and biotechnology sector experienced a decline of 2.2% from September 22 to September 26, underperforming compared to the Wind All A index (0.25%) and the CSI 300 index (1.07%) [3][8] - The flu season is becoming active, with monitoring data indicating a slow upward trend in respiratory infectious diseases, particularly in southern provinces [3][12] - The upcoming ESMO conference from October 17 to 21 in Berlin will feature significant research contributions from Chinese scholars, with 23 studies included in the Late-Breaking Abstracts [3][12] Market Weekly Review - The pharmaceutical and biotechnology sector declined by 2.2%, with only the other biological products sector showing a slight increase of 0.05%. The raw materials sector saw a significant drop of 8.22% [8][9] - Notable stock performances included Sunflower (57.9% increase), Aopumai (23.9% increase), and Xinlitai (15.8% increase), while Borui Pharmaceutical (-38.4%) and Zhongsheng Pharmaceutical (-14%) faced significant declines [11][12] Industry News and Key Company Announcements - The National Healthcare Security Administration launched a "100-day action" to address prominent issues in medical insurance fund management, effective until December 31, 2025 [12][13] - Pfizer announced its acquisition of Metsera for approximately $4.9 billion, focusing on developing next-generation obesity and cardiometabolic disease drugs [16][17] - The ESMO conference has highlighted 23 groundbreaking studies from Chinese researchers, marking a significant achievement for the industry [16][17]