U.S. health regulators significantly widened the nation’s Covid-19 booster campaign, clearing use of extra doses of Moderna Inc. and Johnson & Johnson vaccines and also saying people can get a shot that is different from what they had previously received.

The moves, announced by the Food and Drug Administration on Wednesday, will make boosters available to the majority of adults who have been fully vaccinated and have passed the recommended waiting period.

Now every Covid-19 vaccine authorized in the U.S. also has a booster. And people who took one company’s shot to get vaccinated could choose to get a booster dose made by a different company.

Moderna and J&J Covid-19 Boosters, Mixing and Matching Authorized by the FDA – WSJ