Which of the following distinguishes viral activity from bacterial activity?

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

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Subject
Microbiologymedical-mcqs › microbiology
Published
26 Jul 2019
Last updated
28 May 2026

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Explanation

The key factor that differentiates viral infections from bacterial ones is the production of interferon, a protein that inhibits viral replication. In contrast, bacterial infections are often characterized by toxin release and immune responses involving lymphocytes and neutrophils.

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