Which was the first bacterium to be clearly identified as the cause of an infectious disease?
A) Legionella pneumophila , which causes Legionnaires' disease
B) Chlamydia sp ., which causes pelvic inflammatory disease in women
C) Clostridium botulinum , which causes botulism
D) Bacillus anthracis , which causes anthrax
E) Vibrio cholerae , which causes cholera

Question

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Bacillus anthracis was the first bacterium conclusively demonstrated to cause an infectious disease, anthrax, by Robert Koch in 1876. This discovery was a pivotal moment in the field of microbiology and infectious disease research.

Which Was the First Bacterium to Be Clearly Identified as the Cause