Update: Johnson&Johnson formally asks FDA to authorize booster shots

Johnson & Johnson seeks FDA authorization of Covid booster shot J&J said Monday that giving a second dose two months after the first increased protection against symptomatic moderate to severe Covid-19 to 94 percent, with 100 percent protection against severe illness. Lauren Gardner POLITICO

Johnson & Johnson on Tuesday asked the Food and Drug Adminstration to authorize a booster dose of its Covid-19 vaccine for people 18 and older.

The company did not specify how long after initial vaccination the second, booster dose should be given. J&J submitted data to the FDA in September it said showed that a booster shot given two to six months after an initial dose bolstered antibody protection against Covid.

J&J said Monday that giving a second dose two months after the first increased protection against symptomatic moderate to severe Covid-19 to 94 percent, with 100 percent protection against severe illness. ...