The Moderna coronavirus vaccine has been given the green light for use in the EU.
The European Medicines Agency (EMA) has recommended conditional marketing authoritisation for the jab.
It's the second vaccine approved for use in the EU, after the Pfizer / BioNTech vaccine.
The Moderna vaccine uses similar mRNA technology, and must also be stored in very cold conditions.
It's also a two-dose vaccine, with two injections given 28 days apart.
Ursula von der Leyen said efforts are now underway at 'full speed' to make the vaccine available in the EU, which would boost countries' supplies as vaccination programmes intensify.
Good news for our efforts to bring more #COVID19 vaccines to Europeans!
@EMA_News assessed that the @moderna_tx vaccine is safe & effective.
Now we are working at full speed to approve it & make it available in the EU.— Ursula von der Leyen (@vonderleyen) January 6, 2021
EU authorities say the Moderna product meets their standards, based on evidence from very large clinical trials showing an efficacy rate of over 90%.
EMA's Emer Cooke said: “This vaccine provides us with another tool to overcome the current emergency.
“As for all medicines, we will closely monitor data on the safety and effectiveness of the vaccine to ensure ongoing protection of the EU public."
EU authorities are also due to decide on whether to approve the Oxford / AstraZeneca vaccine, but a decision is not expected for several weeks.
