Exclusive: Pfizer's COVID-19 vaccine supply to the EU 30% below plans - sources

FILE PHOTO: A nurse fills a syringe with a second dose of the Pfizer-BioNTech COVID-19 vaccine, as the coronavirus disease (COVID-19) outbreak continues, at Enfermera Isabel Zendal new pandemic hospital in Madrid, Spain, February 4, 2021. REUTERS/Sergio Perez/File Photo

BRUSSELS (Reuters) - Pfizer has not yet delivered to the European Union about 10 million COVID-19 vaccine doses that were due in December, EU officials said, leaving it about one-third short of the supplies it had expected by now from the U.S. company.

The delay is another blow to the EU, which has also been hit by delays in deliveries from Anglo-Swedish drugmaker AstraZeneca and U.S. company Moderna, and had also faced earlier delays on the Pfizer vaccine.