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5.1 Health and communicable disease

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Question 6

A transfusion service tests every blood donation for HIV before the blood is given to patients, including donations from people who feel healthy.

Which statement explains how this testing reduces HIV transmission?

[1]
A

identifies blood containing HIV so that it is not used for transfusion

B

causes patients to produce antibodies and memory cells before the transfusion

C

reduces HIV replication in donated blood before it is used for transfusion

D

removes HIV from infected blood so that it is suitable for transfusion

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5.1 Health and communicable disease Questions

  1. GCSE
  2. /Biology
  3. /5.1 Health and communicable disease

112 exam-style questions on Edexcel GCSE Biology 5.1 Health and communicable disease, covering 5.1.1 Communicable and non-communicable diseases, 5.1.2 Disease susceptibility interactions, 5.1.3 Pathogens as disease-causing organisms, 5.1.4 Common infections, 5.1.5 Spread and prevention of pathogens, 5.1.6 Lifecycle of a virus, and 5.1.7 Spread and prevention of STIs. Each one has a worked solution and a mark scheme showing where the marks go.

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