Europe's drug regulator said on Monday it has approved two more manufacturing sites for producing the COVID-19 vaccine developed by Pfizer Inc, while also approving a ready-to-use formulation of the coronavirus shot.

(Reporting by Pushkala Aripaka in Bengaluru; Editing by Shounak Dasgupta) ((Pushkala.A@thomsonreuters.com; Twitter: @pullthekart; Mobile: +91 852 751 3793))