The Russian coronavirus vaccine is the best in the world, said President Vladimir Putin,
However, it is necessary to determine how the vaccine will work if new strains of the disease are discovered, he said.
He noted that no other medicines show this kind of protection and safety.
The politician noted that in some states, a surge in the incidence of COVID-19 had been recorded.
It is not clear with what [the surge] is connected - either with new strains or with the fact that the discipline necessary in such conditions wasn’t observed on holidays, he noted.
Putin added that it is necessary to find out precisely what the reason is since diseases involving new COVID strains have been recorded in Russia.
NEWS.ru reported earlier that Sputnik V vaccine production is to begin in Brazil soon.