FDA warns of “risk” in U.K. plan to delay 2nd Pfizer vaccine shots

Read MoreFacing a surge in infections, U.K. officials said the 2nd dose of the Pfizer vaccine can wait up to 12 weeks. The FDA says that decision is “not rooted solidly in the available evidence.”Facing a surge in infections, U.K. officials said the 2nd dose of the Pfizer vaccine can wait up to 12 weeks. The FDA says that decision is “not rooted solidly in the available evidence.”