2 years ago

How have vaccines impacted health?

2 answers:

5 0

B. Or D. Would be your answer. The reason why I would say B. Is because people have different immune systems which makes your body reject the vaccine contents. But on the other hand for D. Is that it they have made a lot of pretty bad sicknesses almost disappear such as chicken pox.

fgiga [73]2 years ago

3 0

Answer:

D some disease have almost completely disappeared

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2 years ago

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