“Currently there are more than 110 thousand guests in Sochi.

At the same time, the city operates on high alert, ”he said in his Telegram channel.

According to Kopaigorodsky, all events have been canceled in Sochi, and a QR code system is in place for visiting catering establishments and when checking into hotels.

He also said that he instructed to strengthen the sanitation of public places and transport.

Earlier, the governor of the Krasnodar Territory, Veniamin Kondratyev, said that in the region, in order to prevent the further spread of coronavirus, from November 1, catering establishments are prohibited from working from 23:00 to 06:00.

Director of the Research Center for Epidemiology and Microbiology named after N.F.

Gamalei Alexander Gintsburg in an interview with NSN told how collective immunity is formed.