As he noted in an interview with Interfax, the vaccine does not need to be modified for the new version of COVID-19, unlike the mRNA preparations from Pfizer / BioNTech and Moderna.

“No, the same recommendation remains - vaccination with Sputnik V and revaccination with Sputnik Light in six months,” Gunzburg said.

Earlier it was reported that the inspectors of the European Medicines Agency (EMA) gave a "positive opinion" regarding clinical trials of the Sputnik V coronavirus vaccine.

On January 11, the Gamaleya Center called the COVID-19 revaccination every three months extreme.