Moderna Seeks FDA Authorization For a Second Adult Booster Shot

Moderna on Thursday requested the Food and Drug Administration grant emergency use authorization to a fourth dose of its Covid-19 vaccine for adults who already received a booster dose of any approved or authorized shot.
The company said its request includes all adults to give flexibility to CDC and health care providers so they can “determine the appropriate use of an additional booster dose.”
Immunocompromised people are already authorized to receive fourth doses of messenger RNA vaccines. Pfizer and BioNTech asked FDA Tuesday to authorize a second booster for adults 65 and older.