WASHINGTON, D.C. — Federal regulators are expected to authorize the mixing and matching of COVID-19 booster shots this week.
The upcoming announcement by the Food and Drug Administration is likely to come along with authorization for boosters of the Moderna and Johnson & Johnson shots.
It follows the OK last month of a third dose for the Pfizer vaccine for many Americans.
The FDA was also expected to say that using the same brand for a booster was still preferable.
The move was previewed Tuesday by a U.S. health official familiar with the matter who was not authorized to speak publicly ahead of the announcement.