Pfizer says third dose likely

 People may need a third Pfizer jab after being fully vaccinated, the CEO of the company has said. (Edwina Pickles)

The CEO of Pfizer says people will likely need a third dose of the company's vaccine within a year of being fully vaccinated.

"The likely scenario is there be a likely need for a third dose, somewhere between six and 12 months," Albert Bourla said. "And from there, there will be an annual vaccination.

The revelations could throw Australia's plans for the Pfizer jab into disarray, with only 40 million doses secured.