Well, Louis Pasteur was a scientist who discovered a process called "pasteurization." What this process is is heating food or whatever liquids to kill the bacteria which might be in it. This process became widely used for milk, as well as for vaccines. It improved food safety for the public and provided for a way that people can get vaccinated so that their immune systems are resistant to disease. So from my knowledge, I would say "better standards for public health" is your answer.
