Which scientist is credited with developing vaccines and the process of pasteurization?

The scientist credited with developing vaccines and the process of pasteurization is Louis Pasteur. Pasteur is renowned for his groundbreaking work in microbiology, where he made significant advances that laid the foundation for the field of immunology. He developed vaccines for several diseases, including rabies and anthrax, which were among the first vaccines to be created using the principles of immunization.

Additionally, Pasteur is well-known for inventing the process of pasteurization, which involves heating liquids, such as milk and wine, to kill harmful bacteria and extend shelf life without altering the product significantly. This method revolutionized food safety and preservation.

This dual contribution to both vaccination and food safety underscores Pasteur's profound impact on science and public health, which is why he is widely recognized as a key figure in these areas.