“We saw her (mutation AY.4.2. - RT) in Moscow and the Moscow region, three such cases, and we are very closely watching what is happening,” Interfax quotes her as saying.

Earlier, Kamil Khafizov, head of the scientific group for the development of new methods for diagnosing human diseases at the Central Research Institute of Epidemiology of Rospotrebnadzor, spoke about the identification of isolated cases of AY.4.2 in the Moscow region.

Virologist, Doctor of Medical Sciences Anatoly Altstein, in an interview with RT, commented on reports of cases of the disease detected in Russia with a variety of COVID-19 AY.4.2.