Sanofi Pasteur SA

Sanofi Pasteur SA (Sanofi Pasteur) is the vaccines business of Sanofi, based in France and focused on the research, development, manufacturing, and distribution of human vaccines. Its portfolio spans preventive vaccines for influenza, polio, meningococcal disease, diphtheria, tetanus, pertussis, rabies, yellow fever, and pediatric combination immunizations, supplied to healthcare providers, governments, and international organizations worldwide.

The company operates R&D centers and cGMP manufacturing facilities, with capabilities that include antigen production on egg-based and recombinant platforms, conjugate technologies, aseptic fill–finish, quality control, and global cold-chain logistics. Sanofi Pasteur works with public health agencies and partners to support immunization programs and advance vaccine innovation, contributing to infectious disease prevention across diverse regions and age groups.