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mRNA vaccines work by delivering genetic instructions for cells to produce a viral ________ protein.
- Envelope
- Spike
- Capsid
- Matrix
Answer: Spike
mRNA vaccines (e.g., COVID-19) encode the spike protein of SARS-CoV-2. Cells produce it, triggering immune response without live virus. Platform enables rapid vaccine development. [[ICMR, MoHFW Guidelines]]