Pfizer chief says COVID-19 booster likely needed

According to a report from The New York Times, CEO Albert Bourla said a third dose six to 12 months after the initial doses and annual vaccinations thereafter is a likely scenario due to the emerging variants of the disease. Meanwhile Moderna says that is at work on a booster shot for its own vaccine, and Johnson and Johnson says its single-dose jab may have to be administered yearly.
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