International – Real-world data suggests Sputnik V vaccine is 97.6% effective, says RDIF

New real-world data has suggested that Russia’s Sputnik V vaccine is 97.6% effective against COVID-19, the Gamaleya Institute and the Russian Direct Investment Fund (RDIF) announced yesterday.

The new efficacy rate is based on the analysis of data from 3.8 million Russians vaccinated with both components of Sputnik V from between 5 December 2020 and 31 March 2021.

In a statement, the RDIF said the Ministry of Health of Russia maintains a register of those who have been vaccinated, as well as citizens who have been infected with COVID-19.

According to the data, the infection rate starting from the 35th day from the date of the first injection was 0.027%.

The incidence among the unvaccinated adult population was found to be 1.1% for a comparable period starting from the 35th day after the launch of the mass-scale vaccination in Russia…