Pfizer Criticizes Sudden Change in Coronavirus Vaccine Dosing Regime in the U.K.

The gap between the first and booster doses of Pfizer (NYSE:PFE) and BioNTech's (NASDAQ:BNTX) coronavirus vaccine has been widened substantially in the U.K. -- and Pfizer is not pleased about it.

The U.K.'s joint committee on vaccination and immunization, an advisory body that advises government healthcare agencies, approved new dosing guidelines for both Pfizer/BioNTech's BNT162b2 and the just-approved AZD1222 from AstraZeneca and the University of Oxford. The new guidelines state that both vaccines' two requisite shots can be administered as much as three months apart.