Answer:
The correct answer is 4) "The tetanus toxoid are toxins that have been altered so that they are no longer toxic."
Step-by-step explanation:
Tetanus Toxoid is simply another name for the Tetanus Vaccine.
It is used for protection against Tetanus infection. Tetanus is a deadly non-communicable infection caused by a toxin from a bacterium called Clostridium Tetani.
It has the potential to trigger a malfunction with the nervous system causing muscle contortions and contractions which can be quite painful. One of its most visible effects is the lock-jaw.
To be inoculated with the vaccine is the safest way to stay prevented from the disease. The Tetanus Toxoid vaccine is a form of the toxin which has been modified to remove its toxicity.
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