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Communicable diseases, disease prevention and the immune system

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Question 23

Immunological protection can be acquired through different pathways. Consider the following three clinical scenarios:

  1. A child receives the Salk polio vaccine, which contains inactivated poliovirus.
  2. An individual who has been bitten by a rabid dog is immediately injected with anti-rabies immunoglobulins.
  3. A newborn baby receives IgA\text{IgA}IgA antibodies from their mother's colostrum during breastfeeding.

Which of these scenarios rely on the recipient's own immune system undergoing clonal selection and expansion to generate long-term protection through memory cells?

A

1 only

B

1 and 2 only

C

2 and 3 only

D

1, 2 and 3

Markscheme

Communicable diseases, disease prevention and the immune system Questions

  1. A Level
  2. /Biology
  3. /Communicable diseases, disease prevention and the immune system

40 exam-style questions on OCR A A Level Biology Communicable diseases, disease prevention and the immune system. Each one has a worked solution and a mark scheme showing where the marks go.

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