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"It's Europe's moment. On 27, 28 and 29 December vaccination will start across the EU," von der Leyen tweeted, reports Xinhua.
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The announcement came two days after the European Medicines Agency (EMA) decided to bring forward a meeting to conclude its assessment of the vaccine jointly developed by Germany's BioNTech and America's Pfizer.
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On Thursday, French President Emmanuel Macron tested positive for COVID-19, and a number of EU leaders including European Council President Charles Michel, Spanish Prime Minister Pedro Sanchez, as well as Secretary-General of the Organization for Economic Co-operation and Development (OECD) Angel Gurria went into self-quarantine after having lunch with Macron one day earlier.
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According to the website of the World Health Organization, as of Wednesday, there were 222 COVID-19 candidate vaccines being developed worldwide, and 56 of them were in clinical trials.