‘The Sputnik V vaccine is based on a well-studied human adenoviral vector platform that has proven safe and effective with no long-term side effects in more than 250 clinical trials globally conducted during the past two decades - while the history of the use of human adenoviruses in vaccine development began in 1953. More than 100,000 people have received approved and registered drugs based on human adenoviral vectors. The uniqueness of the Russian vaccine lies in the use of two different human adenoviral vectors which allows for a stronger and longer-term immune response as compared to the vaccines using one and the same vector for two doses.’
Read here (Sputnik V, Nov 23, 2020)
