Describe what a vaccine is made of and how it helps prevent infection.

Mathematics

1 answer:

12345 [234]3 years ago

6 0

Answer:

Vaccines are made of mixtures that contain either parts of pathogens or whole pathogens that prepare the body's defenses to fight against the pathogens.

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Step-by-step explanation:

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1560 cubic inches

Step-by-step explanation:

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