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What substance in a vaccine stimulates the immune system

User Toya
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2 Answers

4 votes

Answer:

antigens

Step-by-step explanation:

I took the quiz.

User Brad Campbell
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A vaccine contains a weakened or dead version of the virus. This weakened or dead virus is what triggers your immune system. Your body registers the presence of this virus and begins to produce antibodies to fighting off.

Hope this helps! : )
User Thush
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