Immunization: practice question

A PSM question in the style of the NEET PG paper. Answer it first, then read why the right option is right and why each of the others is wrong.

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PSM · Immunization

Sample item

What community effect occurs when enough people are immune to reduce transmission?

Original practice item, not a recalled exam question. Nothing here is recorded.

The answer and the reasoning

B. Herd protection

This Immunization item is answered by Herd protection, which directly follows the principle relevant to the observation, documentation, or public-health action described.

Option by option

  • A. Incubation

    Incubation does not explain the stated finding or appropriate intervention.

  • B. Herd protection (correct)

    Correct. Herd protection most directly matches the defining clue in this item.

  • C. Passive immunity

    Passive immunity does not establish the requested immunization conclusion.

  • D. Virulence

    Virulence may be associated with another setting but is not the best fit here.

Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.

More PSM questions

Questions about this PSM question

What is the answer to this PSM question?

The best answer is B, Herd protection. This Immunization item is answered by Herd protection, which directly follows the principle relevant to the observation, documentation, or public-health action described.

Why is "Incubation" not the answer?

Incubation does not explain the stated finding or appropriate intervention.

Why is "Passive immunity" not the answer?

Passive immunity does not establish the requested immunization conclusion.

Why is "Virulence" not the answer?

Virulence may be associated with another setting but is not the best fit here.

What concept does this question test?

It tests Immunization in PSM. The correct option holds because: Correct. Herd protection most directly matches the defining clue in this item.

How hard is this question?

We tag it as an application question: it asks you to use a fact on a patient or a finding. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

How should I study Immunization?

Practise biostatistics with small calculations until sensitivity, predictive values and risk measures are automatic. Then use the flashcards and the other PSM questions on this site to test what stuck.

Is this a real NEET PG question?

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.