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.

anshika9319 Asked question July 29, 2021