Bacterial infections: yaws: practice question

A Dermatology 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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Dermatology · Bacterial infections: yaws

Sample item

A child from a remote tribal area has a papillomatous 'mother yaw' on the leg and a positive treponemal test. What is the oral treatment used in the eradication strategy?

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

The answer and the reasoning

A. Single dose azithromycin

Yaws is caused by Treponema pallidum subspecies pertenue. A single oral dose of azithromycin (30 mg/kg, maximum 2 g) is the basis of the Morges strategy, and India was declared free of yaws in 2016.

Option by option

  • A. Single dose azithromycin (correct)

    Correct. Single dose azithromycin is the current strategy.

  • B. Oral griseofulvin

    Griseofulvin treats dermatophytes.

  • C. Oral rifampicin for 6 months

    Rifampicin is used for leprosy and tuberculosis.

  • D. Oral acyclovir for 7 days

    Acyclovir has no antitreponemal activity.

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 Dermatology question

What is the answer to this Dermatology question?

The best answer is A, Single dose azithromycin. Yaws is caused by Treponema pallidum subspecies pertenue.

Why is "Oral griseofulvin" not the answer?

Griseofulvin treats dermatophytes.

Why is "Oral rifampicin for 6 months" not the answer?

Rifampicin is used for leprosy and tuberculosis.

Why is "Oral acyclovir for 7 days" not the answer?

Acyclovir has no antitreponemal activity.

What concept does this question test?

It tests Bacterial infections: yaws in Dermatology. A single oral dose of azithromycin (30 mg/kg, maximum 2 g) is the basis of the Morges strategy, and India was declared free of yaws in 2016.

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 Bacterial infections: yaws?

Learn each condition by its primary lesion, site and signature sign. Then use the flashcards and the other Dermatology 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.