Robert Koch: Pioneer of Bacteriology and Tuberculosis Discovery

Robert Koch (1843–1910) revolutionized infectious disease science.

Major Achievements

• Koch's postulates (1884): Criteria to establish microbial causation of disease.
• Mycobacterium tuberculosis (1882): Identified the TB bacillus, enabling diagnosis and vaccine development.
• Bacillus anthracis (1876): Proved anthrax's bacterial origin.
• Vibrio cholerae (1883–84): Isolated cholera pathogen in Egypt/India.
• Malaria and rinderpest research: Field studies in Africa, New Guinea, Italy.
• Laboratory innovations: Solid agar media, pure culture techniques, staining methods.

Legacy

Koch received the 1905 Nobel Prize in Physiology or Medicine. His work founded modern microbiology and public health bacteriology. He died of a heart attack on 27 May 1910 in Baden‑Baden.