By Staff

CAMBRIDGE (CBS) – Cambridge-based Moderna has submitted COVID-19 booster shot to the FDA, it announced Wednesday.

The company said a third dose, given in the same concentration as the first two doses can boost a person’s immune response to the Delta variant by more than 40 times.

In trials, Moderna gave a third dose to participants 6 months after their second dose of the vaccine. The company said the third dose “induced robust antibody responses” and was as safe as the second dose. Staff