Respuesta :
The answer would be true. Yes, certain vaccines need boosters to ensure protection against the targeted infection.
How do boosters work?
A booster dose make the immune system think that the body is again attacked by a pathogen due to which the immune system is activated again to attack the pathogen. This process makes the immune system remember the pathogen. The antibodies recognize and kill them before it causes harm. So, the booster dose trains your body to recognize the pathogen and defend itself.
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