BRUSSELS — A stockpile of 29 million doses of AstraZeneca’s Covid-19 vaccine that had been discovered languishing in a facility in Italy grew to become the brand new flash level on Wednesday within the battle between the pharmaceutical firm and the European Union, because the bloc ready to unveil stringent export restrictions primarily meant to cease drugmakers from sending doses overseas.

The Italian authorities discovered the vaccines in a web site go to, European Union officers stated, at a manufacturing unit close to Rome that’s contracted to fill and end Covid-19 vaccine vials for AstraZeneca.

The Italian authorities went to the positioning after receiving an alert from the European Fee, which discovered a discrepancy between what the corporate stated it was producing in European Union amenities, and what the amenities themselves had been reporting.

The presence of so many doses raised suspicions that the pharmaceutical firm was looking for a method to export them to Britain or elsewhere, one thing the bloc has demanded that AstraZeneca cease doing till the corporate fulfills its guarantees for deliveries.

The European Union was meant to obtain greater than 100 million vaccine doses from AstraZeneca within the first quarter of this yr, however has acquired solely 16.6 million. The provision scarcity has helped to derail vaccination efforts throughout the 27 member international locations and contributed to embarrassingly gradual inoculation charges on the continent.

What has most irked the European Union is that AstraZeneca has been constantly delivering on its contract with Britain whereas letting the bloc take the brunt of its manufacturing failures which have diminished provides. AstraZeneca has denied it has violated its E.U. contract. The bloc took step one final week to litigate the problem by activating an amicable dispute mechanism with AstraZeneca, however there isn’t a indication both celebration intends to take it to court docket.

The bloc tried to pressure AstraZeneca to ship extra doses by introducing a system of export authorizations on Feb. 1, however just one AstraZeneca cargo, a small batch headed to Australia, ha been blocked since that got here into pressure.

On Wednesday, the European Union launched a stricter export-control plan that goals to crack down on exports, because the bloc fears AstraZeneca deliveries may also disappoint within the second quarter because the bloc confronts a 3rd wave of infections and prolonged lockdowns.

E.U. officers stated there was no proof that the stockpile in Italy, first reported by the Italian daily La Stampa, was sure for Britain. They stated the corporate, when confronted in regards to the doses, stated that 16 million doses had been sure for the E.U. market and 13 million to international locations below the Covax initiative that goals to get doses to poorer nations. These latter exports can be exempt from E.U. controls, as they’re deemed to be of humanitarian nature.

AstraZeneca didn’t instantly reply to a request for remark.

The officers stated that they had requested AstraZeneca for extra details about the place the energetic ingredient within the vaccine vials present in Italy had been manufactured — a query geared toward forcing the corporate to offer extra details about its provide chain and manufacturing capability.

For AstraZeneca, the dispute over the Italian doses was the most recent in a collection of communications blunders with well being officers on either side of the Atlantic which have soured the corporate’s relationship with a number of governments.

Some American officers realized a few snag within the firm’s medical trials final yr from the information media. The corporate’s U.S. trial was paused for practically seven weeks final fall, partly as a result of AstraZeneca was gradual to offer American regulators with proof that the vaccine had not precipitated a neurological sickness. (Investigators later concluded the signs weren’t linked to the vaccine.)

However analysts imagine that a few of AstraZeneca’s manufacturing difficulties are additionally a mirrored image of the corporate’s formidable world distribution plans. It had supposed to make as many as three billion doses this yr, partly by contracting its manufacturing to vegetation all around the world. Different vaccine makers, in contrast, are counting on just a few amenities.

That world community of factories, analysts stated, had the potential to create issues within the firm’s provide chain, although it is usually a part of what has made the vaccine so vital to the worldwide vaccination effort.

Benjamin Mueller contributed reporting from London.