How many days does it take for the COVID booster dose to be effective?

66 -year-old man2 years ago
I had my second booster dose (fourth vaccine) from pfizer yesterday August 12.
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Naji-tom Samaha · 2 years ago
Hello!
We notice a significant increase in antibodies between 3 to 7 days after the booster doses
Sincerely,
Tom Samaha, pharmacist

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