Question

2. Write short notes on:
(a) immunity
(b) vaccination.​

Answer 1

Answer:

(a)Immunity is the ability of the body to defend itself from 'foreign bodies'. This means rejecting infections, clearing up dust which gets in the lungs, and killing cancer cells.

(b)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 protein.

Answer 2

Immunity is the ability of body to defend itself from foreign bodies.

vaccination - the method of introducing vaccine in the body to develop resistance to a particular disease is called vaccination

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