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2 marksTransport Systems

CSEC Biology · January 2013 · Paper 2 · Question 6(a)(ii)

A recent outbreak of swine flu was caused by the H1N1 virus. One prevention measure adopted by some countries was an immunization programme.

Suggest TWO disadvantages of immunization.

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Other parts of this question

  1. 6(a)(i)Distinguish between artificial immunity and natural immunity. In your answer, explain how artificial immunity and natural immunity protect the human body…[6 marks]
  2. 6(a)(iii)The H1N1 virus is spread through the air. Suggest TWO precautions, other than immunization, that an individual can take to avoid getting the disease.[2 marks]
  3. 6(b)(i)Name a pathogenic disease that is spread in a manner different from the H1N1 virus and suggest ONE measure that may be taken to control the spread of this…[2 marks]
  4. 6(b)(ii)How are the methods used in the control of the spread of viruses among crop plants similar to those used to control the spread of viruses among farm animals?[3 marks]

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