Pfizer vaccine moves closer to getting the OK in the US

On Wednesday, the FDA will ask an independent panel of vaccine experts to debate both Pfizer's and Moderna’s vaccine data before voting.

The U.S. has moved a step closer to offering booster doses of Pfizer’s COVID-19 vaccine to seniors and others at high risk from the virus.

The drugmakers said Wednesday that they expect to deliver all the doses by July 31.