Which of the following illnesses is NOT caused by a virus?

Biology Mcqs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

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Subject
Biology Mcqsbiology-mcqs
Published
10 Oct 2024
Last updated
28 May 2026

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Explanation

Poliomyelitis, the common cold, yellow fever, and encephalitis are all viral infections. However, diphtheria is caused by a bacterial infection, not a virus.

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