LONDON- British Prime Minister Boris Johnson said on Wednesday he was confident that the country's supplies of COVID-19 vaccine would keep accelerating.

"I'm confident that ... we will be able to continue that accelerating curve of supply as well," Johnson said when asked about possible shortages of vaccine.

(Reporting by Andy Bruce, writing by William James; Editing by Kate Holton) ((william.james@thomsonreuters.com; +44 207 542 3374; Reuters Messaging: william.james.thomsonreuters.com@reuters.net))