More Covid-19 boosters are on the horizon. But not everyone will need one, experts say
By Travis Caldwell, Advisers from the US Food and Drug Administration voted unanimously to recommend emergency authorization of a booster dose of Moderna’s Covid-19 vaccine, and a day later did so again for a booster of Johnson & Johnson’s vaccine. The group voted Friday to authorize a booster shot of Johnson & Johnson’s vaccine for Americans 18 and older at least two months after they get their first shots. Johnson & Johnson said studies showed boosting at two or six months can bring effectiveness up to 94%. If the FDA follows its advisers’ recommendations, more than 90% of people vaccinated with the Johnson