New Data on Booster Shots Expected in Next 2 Months, Bourla Says

New data on booster shots for Pfizer Inc.’s Covid-19 vaccine could be revealed within the next two months, according to the pharmaceutical company’s chief executive officer.

“We are right now in the middle of the trials, and the data are coming as we speak,” Albert Bourla said during an Axios panel on vaccine development on Wednesday. “Within one to two months we should have enough data to speak about it with higher scientific certainty.”

Bourla’s comments come as drugmakers move rapidly to stay on top of variants that may help the virus elude existing vaccines from Moderna Inc., ...