Pfizer CEO says a fourth booster shot is 'necessary' to protect against Covid-19 - Business Insider South Africa

"It is necessary, a fourth booster right now," Albert Bourla said on CBS's "Face the Nation."

Pfizer CEO Albert Bourla said it will be necessary to receive an additional booster shot in the future.  During an interview on CBS's "Face the Nation on Sunday, host Margaret Brennan asked if a fou… [+1298 chars]

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