With health officials warning of a fourth Covid wave at the end of August

, Kyiv is asking all ‘critical’ employers to submit by next Tuesday a list of all employees who will need Metro passes. Preparations for a new lockdown come after Jarno Habicht, head of the World Health Organization’s office here, warned on Monday that the new Delta variant is expected to hit the country hard in one month, causing a wave of infections that would last until winter.