News > FDA weighing dose of Moderna Covid-19 booster

FDA weighing dose of Moderna Covid-19 booster

The Food and Drug Administration is considering whether to authorize a lower dose of Moderna Inc.’s Covid-19 vaccine for boosters than the dose given in the first two shots, people familiar with the deliberations said.

Moderna said it is asking the FDA to authorize a 50 microgram dose, half the dosage of the first two shots.