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4 marksDiseases

CSEC Biology · January 2019 · Paper 2 · Question 5(b)(ii)

John and his friend were bitten by Aedes aegypti mosquitoes in an area with dengue fever. John did not contract the disease, but his friend did.

Compare the treatment method normally used for a viral disease with the treatment method normally used for diabetes and compare ONE preventative measure normally used for a viral disease with ONE preventative measure normally used for diabetes.

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Other parts of this question

  1. 5(a)Diseases may be categorized as pathogenic (P) when they are caused by a pathogen and hereditary (H) when they are caused by faulty genes. Classify the…[2 marks]
  2. 5(b)(i)Describe how the mode of transmission of dengue fever differs from that of the human immunodeficiency virus (HIV). Use this difference and your knowledge of…[5 marks]
  3. 5(c)Outline TWO methods used to control the mosquito vector and for EACH method state the stage in the life cycle that is targeted.[4 marks]

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