What scientific advancement is attributed to Louis Pasteur’s experiments?

Louis Pasteur's experiments are primarily credited with the establishment of the germ theory of disease. This theory revolutionized the field of medicine by demonstrating that microorganisms are the cause of many diseases. Pasteur conducted experiments that showed how sterilization and the prevention of microbial contamination can prevent disease and spoilage, particularly through his work with fermentation and pasteurization. His findings provided a scientific basis for understanding how infections spread and how they can be controlled, ultimately leading to improved public health measures and advancements in hygiene practices. This foundational work laid the groundwork for modern bacteriology and led to the development of vaccines, transforming how diseases are treated and prevented.