Question

4-

What was Robert Koch's major contribution to science? O Koch demonstrated O Koch demonstrated that the that consumption was infectious. bacteria Mycobacterium tuberculosis caused the consumption infection. O Koch demonstrated that germs were visible to the naked eye. Koch demonstrated that consumption was not a very serious disease.

Answer 1

B)--Koch demonstrated that the bacteria Mycobacterium tuberculosis caused the consumption infection.

Tuberculosis was popularly known as consumption for a long time. Scientists know it as an infection caused by M. tuberculosis. In 1882, the microbiologist Robert Koch discovered the tubercle bacillus, at a time when one of every seven deaths in Europe was caused by TB. Tuberculosis is endemic in many parts of the world but, since the introduction of drugs and immunization with vaccines such as BCG, the world death rate has declined dramatically.