Pfizer CEO Says People May Need Third Dose of Vaccine


April 15, 2021

Story by Cristina Boktok; Photo via Getty/Meyer & Meyer

Pfizer CEO Albert Bourla said those who have taken both doses of vaccine will “likely” need a third booster dose within 6 months to a year of getting fully vaccinated, and then annually thereafter.

“A likely scenario is that there will be likely a need for a third dose, somewhere between six and 12 months and then from there, there will be an annual revaccination, but all of that needs to be confirmed. And again, the variants will play a key role,”  Bourla told CNBC's Bertha Coombs on April 1.

Updated results suggest that the Pfizer vaccine is over 91% effective against contracting Covid 19 and over 95% effective of protecting against severe cases at six months after second dose. As for vaccinations, the Moderna vaccine yields similar results,  however, more data needs to be collected to find out whether protection lasts beyond the six months. 

Booster shots will likely be targeted to protect against newer variants of Covid- 19.

Both Pfizer and Moderna have already started testing third booster shots earlier this year in hopes that they will be available by fall.