The Cold kills Covid-19 People with colds cannot get coronavirus, said Corresponding Member of the Russian Academy of Sciences, Professor Peter Chumakov, who create the Sputnik V vaccine. He explained that a sick person cannot simultaneously become infected with another virus, since interferon is produced in the body. "Interferon is an antiviral protein that protects the body from secondary infection," Chumakov said. At the same time, he stressed that after recovery, there is a risk of contracting COVID-19. Since the body will be weakened by the first infection, the coronavirus can be more severe. Head of the Laboratory of Biotechnology and Virology at Novosibirsk State University, Corresponding Member of the Russian Academy of Sciences Sergei Netesov, in turn, said that respiratory and gastrointestinal mixed infections are quite common, but usually one virus turns out to be stronger than the other.