The chief medical officers of the UK’s four nations have agreed to lower the country’s COVID-19 alert level from level four to level three, paving the way for further easing of lockdown restrictions. Prime Minister Boris Johnson is scheduled to give a press conference on Monday afternoon, at which he is expected to set out the next steps in the lockdown exit. The decision to lower the threat level was announced on Monday in a joint statement from the chief medical officers of England, Wales, Scotland, and Northern Ireland, as well as the national medical director for NHS England. “Following advice from the Joint Biosecurity Centre and in the light of the most recent data, the UK chief medical officers and NHS England national medical director agree that the UK alert level should move from level four to level three,” said the statement. “Thanks to the efforts of the UK …