U.S. health authorities cleared Covid-19 vaccine booster shots for certain people at high risk of severe Covid-19, a bid to help curb the pandemic and the dangerous Delta variant.
The Food and Drug Administration on Wednesday said it permitted a third dose of the shot from Pfizer Inc. and BioNTech SE for people who got two doses of the Pfizer-BioNTech messenger RNA vaccine and are 65 years and older or are at risk of severe disease and death, including because of their jobs or where they live.
