OREANDA-NEWS. Russian President Vladimir Putin said that new, more dangerous strains of the coronavirus may appear. He announced this at the APEC summit, reports TASS.

“The coronavirus is far from being defeated. The emergence of new and even more dangerous strains of this infection is not excluded, ”he said.

Vladimir Putin said that the coronavirus has not been defeated, and it is vital not to weaken efforts to combat it, it is necessary to strengthen the health systems of the APEC countries.

"The coronavirus itself is far from defeated. Therefore, without exaggeration, it is vitally important not to weaken efforts to combat the pandemic, to do everything necessary to strengthen the health systems of our countries, improve their resource and technological support," Putin said during the Asia-Pacific Forum summit. economic cooperation (APEC).

Earlier, Sergei Tokarev, the chief freelance specialist of the Ministry of Health for medical prevention in the Ural Federal District, told who needs to be revaccinated ahead of schedule.

As the immunologist Zoya Skorpileva explained, the absence of antibodies to SARS-CoV-2 may also be a feature of the body. Some people do not develop antibodies at all, she said. Therefore, before each early revaccination, you should consult your doctor.

Prior to that, Albert Burla, CEO of the international pharmaceutical company Pfizer, said that the immune response declines within six months after the second dose of the coronavirus vaccine, and it will probably have to be re-vaccinated every year.