Question

Koch’s postulate was established by Robert Koch while working on a disease caused by

• A. Mycobacterium tuberculosis
• B. Bacillus anthracis
• C. Streptococcus pneumoniae
• D. Bacillus subtilis

Hint:

Koch's postulates are fundamental in microbiology for linking pathogens to diseases. They are particularly useful in demonstrating causal relationships.

Answer 1

The Correct Option is B

Robert Koch, a German microbiologist, established Koch's postulates while working on the bacterium Bacillus anthracis, which causes anthrax. His work involved proving the relationship between the bacterium and the disease. These postulates were revolutionary because they provided a clear method to demonstrate that a specific microorganism causes a particular disease. The four postulates are:
1. The microorganism must be found in all organisms suffering from the disease, but not in healthy ones.
2. The microorganism must be isolated from a diseased organism and grown in pure culture.
3. The cultured microorganism should cause disease when introduced into a healthy organism.
4. The microorganism must be re-isolated from the experimentally infected host.
Thus, the correct answer is \( \boxed{(B)} \).