A toxoid is an inactivated toxin that is used in vaccines to elicit an immune response without causing disease. The toxoid is still recognizable to the immune system, but it has been rendered non-toxic through chemical or heat treatment. This allows the body to create antibodies against the toxin, which can then provide immunity against the disease-causing bacteria that produce the toxin.

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A Toxoid Is

Question 8

Multiple Choice

A toxoid is

A) a type of antibody that combines with a toxin.
B) an enzyme that destroys toxins.
C) a substance produced by some bacteria.
D) an inactivated toxin used in vaccines.
E) the active substance in some drug preparations.

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