How Covid-19 Vaccines Work?

Different type of vaccine work in different ways to offer protection.

But, the body is left with a supply of "memory" T-lymphocytes as well

as B-lymphocytes that will remember how to fight that virus in the future with all types of vaccines.

It typically takes a few weeks after vaccination for the body to produce

T-lymphocytes and B-lymphocytes. Therefore, it is possible that a person could

be infected by the virus of Covid-19, before or after vaccination then, get sick

because the vaccine did not have enough time to provide protection.

The process of building immunity can cause symptoms, such as fever,

sometimes after vaccination.These symptoms are normal and are signs

the body is building immunity.

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