Question

What does a vaccine consist of?​

Answer 1

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○●The vaccine is composed of a protein that resides on the surface of the virus. 

Answer 2

Answer:

A vaccine consists of dead microorganisms of the same kind of infection or disease for which it is being given.

Explanation:

When a vaccine is injected in our body, the dead organisms get in the bloodstream and, the cells which shield our body from those microorganisms act on them and thereby immune our body to that disease.