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Do you need a Covid-19 vaccine booster shot? What to know

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www.livemint.com

What is a booster shot? It is the same dose as given in the two-shot regimen. The extra dose mobilizes your body’s immune system defenses further to protect against Covid-19, especially variants such as Delta that are better at eluding vaccine-generated protection.

Pfizer and partner BioNTech said early testing indicates a booster shot given at least six months after the second vaccine dose produces antibody levels five to 10 times higher than after two doses.

Johnson & Johnson said in August researchers found antibody levels increased ninefold among people who received an extra dose of its single-dose vaccine, compared with one month after they received a first dose. Should I get a booster shot? If and when the FDA authorizes the extra

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