SPUTNIK V
It is an adenoviral vector-based vaccine.
“Vectors” are vehicles, which can induce a genetic material from another virus into a cell.
The vaccine is based on a heterologous recombinant adenovirus approach. It uses a weakened virus to stimulate an immune response much like Serum Institute of India’s Covishield.
Adenoviruses are non-enveloped, double-stranded DNA viruses first discovered in the human adenoid tissue in 1953.
They are considered excellent vectors for delivering target antigens to mammalian hosts.