MOSCOW, May 6. /TASS/. A one-component COVID-19 vaccine dubbed Sputnik Light has been registered in Russia, the Russian Direct Investment Fund (RDIF) informs.

"The Russian Ministry of Health, the Gamaleya Research Center and RDIF announce the registration of the one-component vaccine Sputnik Light against the novel coronavirus infection. Sputnik Light is the first component of the Sputnik V coronavirus vaccine," the message says.

The efficacy of the one-component Sputnik Light vaccine was 79.4% starting from the 28th day after immunization. Its efficiency at nearly 80% outperforms many vaccines, requiring two jabs.

The evaluation of the efficacy was based on the data of those Russians, who received only one jab within the program of the sweeping civilian vaccination drive and those who did not receive the second jab due to any reason whatsoever from December 2, 2020 to April 15, 2021.

The incidence of disease among those inoculated starting from the 28th day after immunization stood at just 0.277%.

Sputnik Light is effective against new coronavirus strains after laboratory tests carried out by the Gamaleya Center.