Sanofi Announces €1 Billion Share Buyback Mandate

Valneva and Instituto Butantan have initiated a pilot vaccination campaign in Brazil using the single-shot chikungunya vaccine IXCHIQ. The campaign aims to evaluate the vaccine's effectiveness and safety in a real-world setting. Valneva will donate up to 500,000 doses of IXCHIQ to the Brazilian Ministry of Health, with the goal of achieving 20-40% vaccine coverage in the target population. This collaboration comes as the World Health Organization calls for urgent action to prevent a potential major chikungunya epidemic globally.