But it's not as easy as just showing up at a store and expecting to get a shot.
The company said Friday the vaccine was 66% effective overall at preventing moderate to severe illness.
The 27-nation bloc is battling with manufacturers over its spot in the priority list for receiving COVID vaccines.
Critics say the new approach won't address underlying problems some states are having with vaccine rollout.
Indonesia, home to the world's largest Muslim population, is awaiting emergency authorization for China's Sinovac vaccine.
The pelletized ice cream snack has to be shipped at extremely low temperatures. So does the Pfizer-BioNtech vaccine.
Fifty U.K. hospitals are on standby to administer vaccine shots, which will be available by next week.
Pharmaceutical company Moderna said its vaccine appears to be 94.5% effective, according to preliminary data.
Moderna's clinical trial has accumulated sufficient data on volunteers with infections to analyze vaccine efficacy.