Russian vaccine Sputnik V, decried last fall, shows 91.6% efficacy rate against symptomatic forms of COVID-19 according to a study published Tuesday in the journal The Lancet. The Russian vaccine therefore joins the closed circle of the most effective vaccines with that of Pfizer / BioNTech and Moderna, respectively at 95% and 94.1%.
Conducted by independent experts, this study corroborates the statements made by Russia last fall on the effectiveness of their vaccine. The international scientific community was then skeptical of the Russians’ lack of transparency. This had not prevented Moscow from starting the vaccination of thousands of people at risk while phase 3 of the clinical trial was not yet completed.
“The development of the Sputnik V vaccine has been criticized for its haste, the fact that it has skipped steps and a lack of transparency. But the results reported here are clear and the scientific principle of this vaccination has been demonstrated ”, confirmed two British professors, Ian Jones and Polly Roy in an article attached to the study.
“This means that an additional vaccine can now join the fight to reduce the incidence of COVID-19.” – Ian Jones and Polly Roy
Almost 20,000 participants took part in this phase 3 of the Russian vaccine clinical trial. These people all received two doses or a placebo between early September and late November 2020. Of the vaccinated group, only 0.1% tested positive.
The experts of The Lancet nevertheless express a reservation that only people who had symptoms were subjected to a PCR test. Another study on asymptomatic cases should be conducted in order to truly identify the effectiveness of the vaccine according to the experts’ opinion.