69th BPSC Prelims (2023), question 22

🔬 Science & Technology

22. How do vector vaccines work to provide immunity?

    1. By introducing a weakened or inactivated virus into the body
    2. By directly attacking and destroying pathogens in the body
    3. By placing the virus in a modified version of a different virus
    4. By entering directly into the cells and enabling them to create spike proteins
    Show answer

    Answer: C — By placing the virus in a modified version of a different virus

    Vector vaccines use a harmless carrier virus modified to carry genetic material of the target pathogen.

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