Second Dose of J. & J. Vaccine Gives Strong Boost, Company Reports

Johnson & Johnson will submit the data to the Food and Drug Administration, which is evaluating similar data on boosters from Pfizer and Moderna.

A booster shot of the Johnson & Johnson vaccine dramatically raises the levels of antibodies against the coronavirus, the company reported on Wednesday. Johnson & Johnson will submit the data to the Food and Drug Administration, which is evaluating similar studies from Pfizer and Moderna. If authorized by the agency, the Biden administration wants to provide booster shots eight months after vaccination. The Johnson & Johnson vaccine was absent from the government’s initial booster plan, announced last week. But with the new data, the company hopes to be part of the initial distribution of additional shots, which could happen as early as September.