Shield
One of the most common misunderstandings about vaccines is the assumption that a vaccinated person can no longer become infected with the virus targeted by the vaccine. In reality, vaccines work in different ways, and their ability to prevent infection is not always identical to their ability to prevent severe illness.
To understand why, it helps to look at what happens when a virus enters the body.
The immune system is a complex network of cells, proteins, and biological processes. It identifies potentially harmful organisms, recognizes features associated with
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