Communicable diseases: Kyasanur forest disease: 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 · Communicable diseases: Kyasanur forest disease

Sample item

Kyasanur forest disease, a tick-borne viral haemorrhagic fever, is transmitted mainly by:

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

The answer and the reasoning

B. Haemaphysalis spinigera

KFD virus is transmitted by Haemaphysalis spinigera ticks, with monkeys as amplifying hosts, in forested areas of Karnataka and neighbouring states. A formalin-inactivated vaccine is used in endemic areas.

Option by option

  • A. Sarcoptes scabiei

    Sarcoptes causes scabies.

  • B. Haemaphysalis spinigera (correct)

    Correct. Haemaphysalis spinigera is the vector.

  • C. Xenopsylla cheopis

    Xenopsylla cheopis is the plague flea.

  • D. Ornithodoros tick

    Ornithodoros transmits relapsing fever.

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.

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Questions about this PSM question

What is the answer to this PSM question?

The best answer is B, Haemaphysalis spinigera. KFD virus is transmitted by Haemaphysalis spinigera ticks, with monkeys as amplifying hosts, in forested areas of Karnataka and neighbouring states.

Why is "Sarcoptes scabiei" not the answer?

Sarcoptes causes scabies.

Why is "Xenopsylla cheopis" not the answer?

Xenopsylla cheopis is the plague flea.

Why is "Ornithodoros tick" not the answer?

Ornithodoros transmits relapsing fever.

What concept does this question test?

It tests Communicable diseases: Kyasanur forest disease in PSM. A formalin-inactivated vaccine is used in endemic areas.

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 Communicable diseases: Kyasanur forest disease?

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.