On the evening of August 26th, news spread online that Sanofi's Pasteur flu vaccine had been suspended or urgently recalled. An anonymous hospital official told 21st Century Business Herald reporters, "The situation of Sanofi influenza vaccine suspension is not unique to any hospital, it should be that all medical institutions in Shanghai have received notification." Many netizens also expressed concern, "What should we do if we have already received the Basde influenza vaccine
Sanofi told 21st Century Business Herald reporters that "influenza vaccine products themselves are highly complex. During Sanofi's ongoing stability assessment, it was observed that the influenza vaccines Valin® and Valia® for the 2024-2025 influenza season; reg; The potency (relevant reference data for the expected biological effects of vaccines) shows a downward trend. We anticipate that the efficacy of the vaccine may be affected before the end of the product's shelf life. As a preventive measure, Sanofi has decided to temporarily suspend the supply and sale of these vaccines in China