"So far, there is nothing super alarming in mutations, but it may very well be," Popova quotes TASS.

She stressed that "the low rate of vaccination in the world gives the coronavirus an opportunity to adapt."

Earlier, the head of Rospotrebnadzor reported that in Moscow and the Moscow region, three cases of the disease with a subspecies of the "delta" strain of coronavirus AY.4.2 were registered.