The mask can be discarded three weeks after the application of the second component of the drug and the determination of antibody levels.
The statement came from Alexander Ginsburg, director of the Gamaleya National Research Center for Epidemiology and Microbiology in Russia, RIA Novosti reported.
According to him, after vaccination, a person should wait at least 21 days and make sure that he is in the experimental group, not in the placebo group.
"I would recommend that you determine the level of protective antibodies, and only then decide for yourself whether to wear a mask. "If the level is high, you can not wear it, but if it is not enough, it is better to wear a mask," he warned.