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A person likely to develop tetanus is immunised by administering:

1. preformed antibodies
2. wide spectrum antibiotics
3. weakened germs
4. dead germs

Correct answer: preformed antibodies

Solution

Preformed antibodies provide passive immunity, giving immediate protection against tetanus toxin. Vaccines with weakened or dead germs work more slowly because they stimulate the body to make its own antibodies.

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