A Levels Biology (9700)•9700/12/M/J/22

Explanation
Passive Immunity in Rabies Treatment Steps:
- Identify treatment as passive immunization using monoclonal or polyclonal antibodies against rabies virus.
- Recall that this provides immediate but temporary protection by neutralizing virus before it reaches the nervous system.
- Evaluate statements based on antibody function: they bind antigens, mark for destruction, but do not stimulate long-term immunity.
- Determine correct statements align with rapid viral neutralization without active immune response.
Why D is correct:
- Statements 2 and 4 accurately describe passive antibody therapy's role in immediate viral clearance and lack of memory cell formation, per immunology principles.
Why the others are wrong:
- A: Includes incorrect statement 1, which likely misstates antibody production.
- B: Includes incorrect statement 1, overlooking passive vs. active immunity distinction.
- C: Includes incorrect statement 3, which confuses antibody effects with vaccine responses.
Not enough information on exact statements 1-4 to fully verify. Final answer: D
Topic: Antibodies and vaccination
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