Pasteur Mérieux Sérum et Vaccins

Pasteur Mérieux Sérum et Vaccins was a preeminent French vaccine manufacturer that evolved through several mergers to become Sanofi Pasteur, and is now the global vaccine business unit of Sanofi. The company has a storied history dating back to the work of Louis Pasteur and Marcel Mérieux, focusing on the development and production of life-saving vaccines for infectious diseases. Its portfolio includes vaccines for influenza, polio, rabies, and various pediatric diseases, serving markets worldwide. Today, as part of Sanofi, it continues to be one of the largest producers of vaccines globally, maintaining significant R&D and manufacturing facilities in France and North America. The company's legacy includes the successful development of the first inactivated polio vaccine and the first rabies vaccine produced in cell culture. Its current operations are at the forefront of vaccine innovation, including the development of next-generation mRNA and recombinant protein technologies.