A person likely to develop tetanus is immunized by administering
A
Weakened germs
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B
Dead germs
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C
Preformed antibodies
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D
Wide spectrum antibiotics
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Solution
The correct option is A Weakened germs A person likely to develop tetanus is immunized by administering weakened germs.
Tetanus toxoid is a vaccine consisting of growth products of Clostridium tetani treated with formaldehyde serving as an active immunising agent. Hence it is weakened germs.