Pfizer CEO: Third vaccine dose ‘likely’ needed within 12 months

Researchers currently do not know how long vaccines provide protection against the coronavirus.

The head of Pfizer has said that people will “likely” need a third dose of his company’s COVID-19 shot within six to 12 months of vaccination, while defending the relatively higher cost of the jab. CEO Albert Bourla also said annual vaccinations against the coronavirus may well be required. “We need to see what would be the sequence, and for how often we need to do that, that remains to be seen,” Bourla told broadcaster CNBC in an interview aired on Thursday.