Question

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Answer 1

Explanation:

vaccine is a biological preparation that provides active acquired immunity to a particular infectious disease. A vaccine typically contains an agent that resembles a disease-causing microorganism and is often made from weakened or killed forms of the microbe, its toxins, or one of its surface proteins.

Louis Pasteur

Answer 2

Answer:

a) vaccine is a substance that helps protect against certain diseases. Vaccines contain a dead or weakened version of a microbe. It helps your immune system recognize and destroy the living microbe during a future infection

b) Dr Edward Jenner performing his first vaccination on James Phipps, a boy of age 8.

c) That should be your own viewpoint.....