A vaccine developed by Russia to prevent coronavirus disease has been shown to be 91.6% effective, according to data from a Phase 3 trial published in The Lancet on 2 February 2021. The vaccine, Gam-COVID-Vac (Sputnik V), is a combined vector vaccine carrying the gene for the SARS-CoV-2 full length glycoprotein S. It is intended to elicit antibodies to the virus glycoprotein as well as antigen-specific cellular immunity.
