Question

The process of vaccination was discovered by

• A. Edward Jenner (1796)
• B. Robert Koch (1876)
• C. Louis Pasteur (1879)
• D. Von Behring (1891)

Answer 1

The correct option is A Edward Jenner (1796)

• Vaccination is the administration of antigenic material (a vaccine) to stimulate an individual's immune system to develop adaptive immunity to a pathogen.
• It is the most effective method of preventing infectious diseases, widespread immunity due to vaccination is largely responsible for the worldwide eradication of smallpox and the elimination of diseases such as polio, measles, and tetanus from much of the world.
• Edward Jenner discovered the process of vaccination in 1796 by introducing material from cowpox vesicle.
  

So, the correct answer is 'Edward Jenner (1796)'.