The Times said the US's rapid vaccination program, and progress in talks over how to use vaccine certificates, were behind the plan to allow the return of leisure travel from the United States to EU.
AstraZeneca had at one time committed to deliver 120 million vaccine doses by the end of March but in actuality only delivered 29.7 million inoculations by that deadline.
AstraZeneca's vaccine was initially expected to be the first to receive federal emergency authorization, and the USA government ordered enough for 150 million Americans before issues with the vaccine's clinical trial held up clearance.
"The commission has started last Friday a legal action against AstraZeneca", a spokesperson told a news conference, adding that all 27 European Union states backed the move.
De Keersmaecker said the action was launched "on behalf of the 27 member states that are fully aligned in their support of this procedure". The EU has nearly 448 million residents - more than one hundred million more than the USA population of 328 million.
Decisions from drug regulators in several European nations to delay advising the shot for older adults, because of a lack of trial data in those age groups, may have contributed to hesitancy in taking the vaccine in parts of the continent.
AstraZeneca has so far delivered just 31 million of the 120 million doses it had promised to the EU.
China's Xi to attend online Biden climate summit
Greenpeace UK's head of climate, Kate Blagojevic, said the summit had more targets than an archery competition. Chinese President Xi Jinping delivers a speech at the Great Hall of the People in Beijing on October 23, 2020.
After the use of the vaccine had been paused by the European Union after reports of thrombosis and death in those receiving the vaccine, the drug regulator admitted that it found a "possible link" between the AstraZeneca coronavirus vaccine and a rare clotting disorder. AstraZeneca is still looking to identify a new USA production facility for its future doses.
The EMA described the clots which have occurred as "very rare" side effects.
Health Minister Datuk Seri Dr Adham Baba said the AstraZeneca vaccine was safe and would be used in the vaccination process for people aged 60 and above. However, based on the now available evidence, it was not able to identify specific risk factors.
Malaysia received 268,800 doses of AstraZeneca vaccine through the Covax facility last Saturday. Some countries, such as Denmark, have scrapped use of the vaccine altogether.
Dr. June Raine, the head of Britain's Medicines and Healthcare Products Regulatory Agency, agreed with the EMA finding, saying that, in her opinion, the benefits "continue to outweigh the risks for the vast majority of people".
European Commissioner for Crisis Management Janez Linarkic tweeted on the same social network, explaining that the Emergency Response Coordination Center, which is at the core of this mechanism, was coordinating with "European Union member states on their readiness to provide oxygen and treatments in emergency situations".