Moderna announces FDA authorization of booster dose of COVID-19 Vaccine in the U.S. for adults 18 years and older.

The booster dose is to be administered at least six months after completion of any primary series COVID-19 vaccination. On October 20th, the FDA authorized for emergency use a booster dose of the Moderna COVID-19 vaccine at the 50 µg dose level for people aged 65 and older as well as adults aged 18 to 64 who are at high risk of severe COVID-19; and people aged 18 to 64 with frequent institutional or occupational exposure to SARS-CoV-2. The Moderna COVID-19 booster vaccine is authorized for adults ages 18 and above regardless of occupational risk factors in many international markets. This follows the earlier approval of the 100 µg mRNA 1273 third dose in immunocompromised individuals.