Question 45
MediumOriginal questionHow does a vaccine protect a person from a disease?
Show the answer and explanation
CorrectNot quiteAnswer B
Correct answer: B
Explanation
A vaccine contains a dead or weakened germ, or a part of it, that cannot cause the disease.
The body makes antibodies and memory cells against it, so a later infection is beaten before it causes illness.
- Concept
- How vaccines work
- Typical timeTypical
- 60 s
- Your timeYours
- —
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