If it sues AstraZeneca, the EU pivots to Pfizer for the world’s largest Covid-19 vaccine contract.

As court hearings in its case against another large vaccine manufacturer, AstraZeneca, began in Brussels on Wednesday, the European Union is pivoting to the Pfizer/BioNTech coronavirus shot with a record deal to purchase up to 1.8 billion doses.

The arrangement with Pfizer, which has yet to be formalised in a contract, will be the largest single deal for a Covid-19 vaccine in the world to date. On a visit to a Pfizer production plant in Puurs, Belgium, European…