There are no complaints about the side effects of Sputnik V, even among those who have already been revaccinated. This was stated by Alexander Ginzburg, head of the Gamalei National Research Center for Epidemiology and Microbiology. “Now there are absolutely no complaints about side effects,” the scientist said in an interview with RIA Novosti.

Earlier, Ginzburg said that clinical trials of a nasal vaccine against COVID-19 have begun. And there is a high probability that after two vaccinations with Sputnik V and subsequent revaccination, protection against coronavirus will be 100 percent.

A vaccinated person will have not only humoral, but also mucosal immunity at the level of the entrance gate. That is, SARS-CoV-2 will not be able to enter the body through the nose.