What is the direct cause of cell death by diphtheria toxin?

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What is the direct cause of cell death by diphtheria toxin? Answer: Inactivation of a translational elongation factor

Question context

This question is part of 🦠 Microbiology within the broader 🧬 Medical Science subject and appears in the DemoPaper-Pakistan preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.