The World Health Organization (WHO) warned on Wednesday that countries emerging from restrictions to halt the new coronavirus must proceed “extremely carefully” or risk a rapid rise in new cases. Director-General Tedros Adhanom Ghebreyesus said countries needed to ensure they had adequate measures to control the spread of the COVID-19 respiratory disease like tracking systems and quarantine provision. “The risk of returning to lockdown remains very real if countries do not manage the transition extremely carefully and in a phased approach,” he said at a virtual briefing in Geneva.