Which trio improved medical knowledge during the Industrial Revolution?

• A. Pasteur, Power and Koch
• B. Pasteur, van Leuwenhoek and Koch
• C. Pasteur, Power and Lister
• D. van Leuwenhoek, Power and Koch

Answer: (A)

During the Industrial Revolution, medicine was transformed by the move from ideas that disease came from bad air to the understanding that specific microbes cause illness, and that those insights could be put to work in prevention and treatment. Pasteur showed that microbes are responsible for fermentation and disease, and he introduced vaccines and pasteurization, giving science a concrete method to combat infections. Koch built on that by pinpointing the exact bacteria behind particular diseases and by formulating Koch’s postulates to prove a microbe causes a disease. The inclusion of Power reflects the era’s momentum to apply these germ-theory advances in public health and bacteriology, accelerating practical progress in medicine. Together, these contributions illustrate the major shift in medical knowledge that defined the period. Other figures in the options either belong to earlier times or focus on different aspects of medicine, so they don’t align as closely with this transformation.