Gunzburg spoke about the effectiveness of "Sputnik V" against the "delta" strain

Gunzburg said this during a session at the IV Forum of Social Innovation of the Regions.

"The effectiveness of the protection of" Sputnik V ", according to the Ministry of Health, today is from 83% to 94%, depending on what indicators and how to count," - quoted by TASS.

He added that the effectiveness of Pfizer and Moderna vaccines against the delta strain, according to American and Israeli universities, "ranges from 40% to a little to 52%."

Earlier, American President Joe Biden said that the spread of the "delta" strain of coronavirus in the United States could be prolonged.