Core Viewpoint - Sanofi's quadrivalent influenza vaccine has been approved for the 2025-2026 flu season after a previous suspension due to efficacy concerns in the 2024-2025 season [1][3] Group 1: Sanofi's Vaccine Status - Sanofi decided to suspend the supply and sale of its influenza vaccines in China for the 2024-2025 season due to a decline in efficacy observed during stability assessments [1] - The company has since optimized the immunogenicity and product stability evaluation for the 2025-2026 flu season, completing trial production in December 2024 with stable efficacy results [1] Group 2: Market Dynamics - During Sanofi's suspension, several domestic vaccine manufacturers reduced their prices to capture market share, with the price of quadrivalent vaccines dropping from 128 yuan to 88 yuan per dose [2] - The price of trivalent vaccines has seen even more drastic reductions, with public trivalent vaccines reaching a historical low of 6 yuan per dose [2] - Recent procurement results from Zhejiang Province show competitive pricing among local manufacturers, with successful bids at 6 yuan and 8.8 yuan per dose [2]