FDA Update on the Safety of Ixchiq (Chikungunya Vaccine, Live). FDA Suspends Biologics License: FDA Safety Communication

On August 22, 2025,the US FDA’s Center for Biologics Evaluation and Research has suspended the biologics license for Valneva Austria GmbH’s Ixchiq (Chikungunya Vaccine, Live). This vaccine was initially approved by FDA under the accelerated approval pathway in November of 2023 for the prevention of