He noted that such a technology was created for the influenza virus, it is being tested in clinical trials.

"The same technology, and even in a more expanded version, is now really being tested for the coronavirus," RIA Novosti quoted him as saying. 

Gunzburg also said that he would recommend the previous vaccination and revaccination strategy for the omicron-strain of coronavirus.

The RDIF announced “high neutralizing activity against the omicron variant of the Sputnik V vaccine - according to scientists, it should provide strong protection against severe cases of illness and hospitalizations.