Answer:
A COVID booster shot is an additional dose of a vaccine given after the protection provided by the original shot(s) has begun to decrease over time. The booster helps people maintain strong protection from severe coronavirus disease.
Some vaccines are administered using the strategy of giving the original (or primary) dose along with a booster dose. With the original dose, the immune system is primed to recognize and produce antibodies against the virus it was created to defend.
Booster shots are administered to remind the body's immune system about the virus it needs to defend against. This improves or gives the immune system a boost
Explanation:
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