Pfizer boss says third COVID vaccine dose likely needed within a year

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LONDON, ENGLAND - DECEMBER 08: Sodium chloride is measured to be added to a phial of the Pfizer/BioNTech COVID-19 vaccine concentrate ready for administration at Guy's Hospital at the start of the largest ever immunisation programme in the UK's history on December 8, 2020 in London, United Kingdom. More than 50 hospitals across England were designated as covid-19 vaccine hubs, the first stage of what will be a lengthy vaccination campaign. NHS staff, over-80s, and care home residents will be among the first to receive the Pfizer/BioNTech vaccine, which recently received emergency approval from the country's health authorities. (Photo by Victoria Jones - Pool / Getty Images)

The CEO of Pfizer, Albert Bourla said Thursday that people will “likely” need to get a third booster shot of the COVID-19 vaccine within 12 months of being fully vaccinated.

He also said it’s possible that people may need to be vaccinated against the virus on an annual basis. “It is extremely important to suppress the pool of people that can be susceptible to the virus,” Bourla said.

Earlier this month, Pfizer said the latest data from its clinical trial showed its vaccine to be highly effective six months after the second dose was given. Pfizer and BioNTech have already begun testing on a third dose, and are specifically looking to see how it does against the new variants of the virus.

As highly-contagious variants emerge across the U.S., urgency is growing to supplement the vaccine protection of Pfizer and Moderna’s two-dose vaccines before we into the fall and winter seasons.

On that note, Moderna today announced it expects to have its own COVID booster shot available by the fall. The company intends to send its testing data on the booster to U.S. regulators in a few months.