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Third vaccine dose likely needed within 6 to 12 months, Pfizer CEO says

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Pfizer Vaccine bottle with COVID-19 vaccination record card, Photo Date: December 14, 2020

(CNN) -- If you've gotten the Pfizer COVID-19 vaccine, you'll likely need a third dose within a year.

The CEO of Pfizer, Albert Bourla, says people are likely to need a booster dose of the vaccine 6-12 months after their first round.

From there, it will be an annual re-vaccination.

Officials are still testing the timing of follow-up vaccine doses.

Bourla shared the news during a CVS Health live event posted to Facebook Thursday.

He also added that real-world data shows the Pfizer vaccine is effective against a worrying variant of coronavirus first seen in South Africa.

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