A student in Trinidad observed that after recovering from chickenpox, she did not contract the disease again despite being exposed to infected classmates. Which type of immunity does this represent?

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Question

A student in Trinidad observed that after recovering from chickenpox, she did not contract the disease again despite being exposed to infected classmates. Which type of immunity does this represent?

Accepted Answer

Natural active immunity — Award 1 mark for identifying that exposure to the pathogen naturally stimulates the body to produce its own antibodies. A is incorrect — passive immunity involves receiving ready-made antibodies, not producing them. B is incorrect — artificial passive immunity involves injection of antibodies. D is incorrect — artificial active immunity involves vaccination, not natural infection.

Answer

Natural active immunity

Answer

Natural passive immunity

Answer

Artificial passive immunity

Answer

Artificial active immunity

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