The term TT vaccine stands for ____________ vaccine.
A
Tetanus-typhoid
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B
Tetanus toxoid
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C
Typhoid toxoid
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D
None of the above
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Solution
The correct option is B Tetanus toxoid TT stands for Tetanus toxoid. It is the vaccine which is made up of inactivated toxic compounds and thus called as toxoid vaccine. In toxoid vaccines, the toxin is made harmless but that has enough potential to elicit an immune response. It is a preventive measure for tetanus infection because it induces an immune response to the original toxin and the memory of this toxin is saved in the memory cells.