Vaccine plants in the European Union are expected to produce 3.6 billion COVID-19 shots next year, out of a global output of more than 20 billion, two senior EU officials said on Wednesday.

EU countries are administering boosters after having completed the primary vaccination of nearly 70% of the EU population, whereas in Africa only 7% have been immunised against the coronavirus, EU data show.

"We are going to produce in Europe much more than what is needed," the EU official told a press briefing, adding that administering boosters in the bloc was not in conflict with the goal of vaccinating the world, because the EU produces more than it needs for itself.

Plants in the EU will make 3.6 billion COVID-19 doses in 2022, up from about 3 billion this year, the official said, adding: "This is much more than what we need to vaccinate and give a booster to our population".

The official did not give a breakdown by vaccine makers.

The largest producers in Europe have so far been Pfizer Inc and BioNTech  .

Other vaccine makers with facilities in the EU are AstraZeneca  , Moderna MRNA.O and Johnson & Johnson . Novavax  also has production capacity in the EU and is expected to soon start delivering shots in Europe.

A second official said the EU estimated that in 2022 the global output of COVID-19 shots would exceed 20 billion doses, citing expanding capacity of Chinese and Russian vaccine makers.

(Reporting by Francesco Guarascio @fraguarascio; Editing by Alexander Smith)