Question: Q. Study the table below and then answer the questions that follow. Name of disease Causative agent Age when the vaccine is administered Method of

Q. Study the table below and then answer the questions that follow.

Name of disease
Causative agent
Age when the vaccine is administered
Method of vaccination
Tuberculosis
Bacterium
At birth
Injection
Poliomyelitis
Virus
At birth, after 6 weeks, after 10 weeks, after 14 weeks
Oral inoculation
Whooping cough
Bacterium
6th and 14th week
Injection
measles
Virus
9th month
Injection

(a)What part of the human body is affected by the virus that causes poliomyelitis? 1mk

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(b)Give a reason why some doses of vaccine are given more than once. 1mk

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(c) Suggest a reason for the delay in vaccinating against measles until the 9th month(1 mark)

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(d) Describe the immune response. (2 marks)

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(e) What is a vaccine? (1 mark)

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(f) What is the role of vaccination in providing immunity? (1 mark)

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(g) What triggers an allergic reaction? (1 mark)

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