Bacteriology: practice question

A Microbiology 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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Microbiology · Bacteriology

Sample item

What is a common route of transmission for Salmonella Typhi?

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

The answer and the reasoning

A. Contaminated food or water

Typhoid spreads by the fecal-oral route through food or water contaminated with human waste from infected persons or carriers.

Option by option

  • A. Contaminated food or water (correct)

    Correct: contaminated food or water transmits typhoid.

  • B. Tick exposure

    Ticks transmit several vector-borne infections, not S. Typhi.

  • C. Mosquito bite

    Mosquitoes transmit diseases such as malaria, not typhoid.

  • D. Airborne dust only

    Airborne dust is not the usual typhoid route.

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 Microbiology questions

Questions about this Microbiology question

What is the answer to this Microbiology question?

The best answer is A, Contaminated food or water. Typhoid spreads by the fecal-oral route through food or water contaminated with human waste from infected persons or carriers.

Why is "Tick exposure" not the answer?

Ticks transmit several vector-borne infections, not S. Typhi.

Why is "Mosquito bite" not the answer?

Mosquitoes transmit diseases such as malaria, not typhoid.

Why is "Airborne dust only" not the answer?

Airborne dust is not the usual typhoid route.

What concept does this question test?

It tests Bacteriology in Microbiology. The correct option holds because: Correct: contaminated food or water transmits typhoid.

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 Bacteriology?

Make a one-line identity card for each organism: shape and stain, defining test, toxin, disease and drug. Then use the flashcards and the other Microbiology 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.