But Dutch Prime Minister Mark Rutte told reporters that he had warned Johnson that the Netherlands would enforce any European Union decision to halt Halix exports - even as he hoped that there would be a quick resolution.
The EU is now facing widespread shortages of coronavirus vaccines, with EU chief Ursula von der Leyen on Thursday threatening to ban the export of AstraZeneca doses out of the bloc until the company fulfills its delivery promises.
"This is our absolute priority and we are completely dedicated to that task along with the European Commission".
Von der Leyen exhibited data showing that the European Union exports more vaccines than any other country or bloc.
The EU Commission chief, Ursula von der Leyen, who confirmed this after a virtual meeting of the leaders of the 27-nation bloc late on Thursday, told a news conference that companies had to honour their contracts with the EU before exporting to other regions.
While the European Union is divided over whether to take a tougher line on vaccine exports by companies that do not meet contractual commitments, French president Emmanuel Macron made it clear he backed the Commission's stance.
"Some of our Member States have been severely affected by the disappointing reduction in deliveries of AstraZeneca vaccines", she added.
However, troubles are mounting at home, as the EU's supply chain is still undermined by the lack of deliveries that affect the roll-out of vaccines.
European Council president Charles Michel declared: "By standing together, shoulder-to-shoulder, the EU and United States can show that democracies are best suited to protect citizens, promote dignity, and generate prosperity". "Actually, none. So we put in place an export control mechanism".
Draghi said he expected at least 4 million more vaccine doses to get to Italy before the end of the month, with production slowly being ramped up in various sites.
Stressing on worldwide cooperation, Dr Swaminathan said to CNN's Christiane Amanpour that the daily global death toll of 7,000-10,000 is "unnecessary and preventable", and that vaccines should be "equitably and fairly distributed around the world". "Since the start of the mechanism on February 1, more than 380 export requests have been made, and only one has been stopped", von der Leyen pointed out.
"Of course, AstraZeneca has been an issue..."
An online summit held on Thursday discussed the vaccines, whose delivery has been delayed so far. "Efforts to this end must be further intensified", the leaders said. Based on the EU's contracts with manufacturers, the commission expressed confidence that 360 million vaccine doses will be delivered during the second quarter of the year.
Countries more exposed by the shortfalls in the supply of the cheaper AstraZeneca vaccine have asked for these extra doses not to be distributed pro-rata but following criteria that take into account infections and the current quantity of vaccines in a certain member state.