A box of Janssen COVID-19 vaccine doses from Johnson & Johnson is pictured in Grubbs Pharmacy on Capitol Hill on Monday April 12, 2021.

Tom Williams | CQ Appeal, Inc. | Getty Images

LONDON – The UK Medicines Agency approved Janssen’s single-dose Covid-19 vaccine for use on Friday.

The UK Medicines and Health Products Regulator (MHRA) said in a statement that doses are expected to be available in the UK later this year.

The UK government has secured 20 million doses of the Janssen vaccine for nationwide rollout.

Earlier this year, the vaccine was found to be 67% effective in preventing infection and 85% in preventing severe cases of Covid-19 and hospitalization.

Janssen is a Johnson & Johnson pharmaceutical company.