A medical worker receives an injection with a dose of COVID-19 vaccine at the Spallanzani Hospital in Rome, Italy, Dec. 27, 2020. (Photo by Andrea Sabbadini/Xinhua) The vaccines approved so far by the EU are from U.S.-German joint venture Pfizer and BioNTech, British-Swedish multinational AstraZeneca, and Moderna from the United States. A senior European Commission official told Xinhua that the slowdown showed the need to have access to vaccines beyond the three already in the pipeline. ROME, Feb. 1 (Xinhua) -- The European Union's (EU) vaccine rollout plan has been thrown into disarray after the manufacturers of all three vaccines approved for use in Europe warned countries of delivery delays over the coming weeks and months.