Sputnik V, was developed by Moscow's Gamaleya Institute.The vaccine, called “Sputnik V" in homage to the world’s first satellite launched by the Soviet Union, has been hailed as safe and effective by Russian authorities and scientists.Recently, the Russian-made vaccine has been proven to be 91.4 per cent effective in providing protection against COVID-19 and has demonstrated 100 per cent efficacy against severe coronavirus cases, the vaccine's developers said."The efficacy of the Sputnik V vaccine is 91.4 per cent, based on the final control point analysis of data obtained 21 days after administering the first dose," Gamaleya Center and the Russian Direct Investment Fund (RDIF) said in a statement.The vaccine demonstrated 100 per cent.