What is the purpose of vaccination?

Vaccination kills the disease causing microorganisms

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It prevents the entry of disease causing organism

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It creates immunity in the body

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All the above

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Solution

The correct option is C
It creates immunity in the body

Vaccination creates immunity in the body. When the immune system first sees an infectious microbe, it responds against it and then remembers it specifically. So, the next time that particular microbe or its close relatives enter the body, the immune system responds with even greater vigour. This eliminates the infection even more quickly than the first time around. This is the principle of vaccination.

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Question 16
You are aware of Polio Eradication Programme in your city. Children are vaccinated because

(a) vaccination kills polio causing microorganisms
(b) prevents the entry of polio causing organism
(c) it creates immunity in the body
(d) all the above

Carriers are organisms which carry disease-causing microorganisms on or in their body.

Which organism is the carrier of dengue virus?

Q.
A. Immunity means the ability of a body to recognize, destroy and eliminate external disease causing agents.
B. Vaccination helps a person to acquire immunity against a certain disease.
C. The vaccine is a solution containing the disease-causing organisms in a diluted or weakened form.
D. The commonly used vaccine are DPT, BCG, hepatitis vaccine, polio vaccine, typhoid vaccine etc.
Select the correct statement.

Q. All microorganisms cause diseases

Q. Which of the following layer of epidermis in man provides the main protection of body against water loss and the entry of disease causing organisms?

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