Aug 15 (Reuters) - Novavax Inc said on Monday it had submitted an application with the U.S. Food and Drug Administration seeking authorization for booster doses of its COVID-19 vaccine.

The U.S. vaccine-maker said it was seeking authorization for use of the booster dose after two doses of its own vaccine, and as a mix-and-match booster after other vaccines. (Reporting by Manas Mishra in Bengaluru; Editing by Shinjini Ganguli)