Question

Q.4. What is immunisation ?​

Answer 1

Answer:

immunization, or immunisation, is the process by which an individual's immune system becomes fortified against an agent

Explanation:

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Answer 2

Answer:

$\huge\underline\mathbb\purple{ANSWÈR}$

Immunisation describes the process whereby people are protected against illness caused by infection with micro-organisms (formally called pathogens). The term vaccine refers to the material used for immunisation, while vaccination refers to the act of giving a vaccine to a person.