"To date, the delta variant continues to prevail in the Russian Federation," RIA Novosti quotes Popova.

The head of the Russian Direct Investment Fund (RDIF) Kirill Dmitriev previously announced the effectiveness of the Sputnik V coronavirus vaccine against new mutations of the virus.

He added that in the event of the emergence of new pathogens of the coronavirus, the adaptation of the Sputnik V platform will take a very short period of time.

Infectious disease doctor, doctor of medical sciences Nikolai Malyshev recalled in an interview with Nation News about the importance of adhering to preventive measures against the background of the detection of the omicron coronavirus strain.