Sanofi Pasteur is the vaccines division of the multinational pharmaceutical company Sanofi. Sanofi Pasteur is the largest company in the world devoted entirely to vaccines. Sanofi Pasteur is one of four global producers of the yellow fever vaccine.

World’s largest producer of influenza vaccines and leading provider of poliomyelitis and paediatric combination vaccines. As a global healthcare leader, Sanofi places quality, safety, ethics and respect for the planet at the heart of our business.