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5.1 Health and communicable disease

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Question 10

In a vaccine study, participants of a similar age receive the same dose of a vaccine containing a harmless form of a virus. One participant has untreated HIV and produces fewer antibodies after vaccination than the other participants.

Which statement explains the antibody result?

[1]
A

HIV destroys the antibodies after they have been released into the blood

B

HIV destroys white blood cells that coordinate immune responses, so fewer antibodies are made

C

HIV destroys red blood cells, so fewer antibodies can be carried around the body

D

HIV destroys the vaccine virus particles before they can trigger a response

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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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