Sophie Pasteur -

Sophie's contributions to medical research were significant, particularly in the field of puerperal fever. In the late 19th century, puerperal fever was a leading cause of maternal mortality, and Louis Pasteur was determined to find a solution. Sophie worked tirelessly alongside her uncle, collecting data, conducting experiments, and caring for patients. Her dedication and attention to detail were instrumental in helping Louis Pasteur develop his germ theory of disease, which posits that many diseases are caused by the presence of microorganisms.