Question:

Which among the following diseases is not caused by bacteria?

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Dengue → Virus TB, Cholera, Typhoid → Bacteria
Updated On: May 19, 2025
  • Tuberculosis
  • Cholera
  • Typhoid
  • Dengue
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The Correct Option is D

Solution and Explanation

Among the diseases listed, the one that is not caused by bacteria is Dengue. Here’s the breakdown of each disease listed:

  • Tuberculosis: Caused by the bacterium Mycobacterium tuberculosis.
  • Cholera: Caused by the bacterium Vibrio cholerae.
  • Typhoid: Caused by the bacterium Salmonella typhi.
  • Dengue: Caused by the dengue virus, which is transmitted by Aedes mosquitoes, making it a viral infection rather than a bacterial one.

Therefore, the correct answer is Dengue.

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