RIA Novosti writes about it.

According to Kuznetsov, the certificate of primary vaccination with the one-component preparation "Sputnik Light" takes effect 21 days after vaccination.

The assistant to the head of the Ministry of Health of Russia also said that the certificate for revaccination or vaccination of citizens who have recovered from COVID-19 with the drug "Sputnik Light" begins to operate on the day of vaccination.

Earlier, the headquarters said that the level of collective immunity to coronavirus infection in Russia was 49%.