According to Doctor of Biological Sciences, Professor of Moscow State University Alexei Agranovsky, more aggressive variants of the coronavirus are more likely to come from animals than appear in the human population.
He explained in an interview with Ura.ru that SARS-CoV-2 developed in animals and accumulated enough mutations to infect humans. But the virus needs many carriers to mutate, so its capabilities in the human population are limited. For example, vaccines can interfere.
Unwanted mutations are unlikely, given the low rate of change of the coronavirus.
“It's not changing as fast as the flu virus. We are doing our best and doing well. I hope for new vaccines, domestic and foreign, ”Agranovsky said.
Earlier, the head of Rospotrebnadzor, Anna Popova, said that very little mutated COVID-19 in nine months. "Aggressiveness and anger" has remained almost unchanged, and the available information about the virus helps to protect the population.