Kirill, 75, has cancelled all of his planned trips and events, according to the Russian Orthodox Church, as he was suffering the symptoms, which require bed rest and isolation.
Alexander Sladkov was speaking to Kremlin-run Rossiya 1 news channel from the Donbas where he let slip how effective Ukraine s counter-offensive has been.
Putin s soldiers categorically refusing to deploy to front lines due to distrust of high command dailymail.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from dailymail.co.uk Daily Mail and Mail on Sunday newspapers.