Which one of these workers was NOT responsible for any of the following contributions to medical microbiology: first epidemiological study of cholera; rules for attributing
aetiological role of bacteria in disease; introduction of prophylactic immunization; epidemiology and prevention of puerperal sepsis?
F. Jenner
G. Koch
H. Metchnikoff
J. Semmelweis
K. Snow.
H. Metchnikoff
Louis Pasteur introduced prophylactic immunization. John Snow conducted the first epidemiological study of cholera. Robert Koch established rules for attributing the aetiological role of bacteria in disease. Ignaz Semmelweis focused on the epidemiology and prevention of puerperal sepsis. Metchnikoff is known for his work on immunology and phagocytosis, but not for these specific contributions.