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The efficacy of a single dose of the Sputnik V vaccine analyzed in a study published in the Lancet – RT en français

The scientific journal The Lancet published a study explaining that an injection of the single dose vaccine against the Covid-19 Sputnik Light was more effective than others in preventing severe forms of the virus in the elderly.

A single dose of Russia’s Sputnik V vaccine – called Sputnik Light – protects older people against serious Covid-19 infections better than a single dose of other leading vaccines, according to a new study in Argentina. The results were published online on September 12 by EClinicalMedicine, which is overseen by the British medical journal The Lancet.

A team of Argentinian researchers has indeed analyzed the data of people who registered on the online vaccination system of the province of Buenos Aires between December 29, 2020 and March 21, 2021.

More than 400,000 people received Sputnik V in Argentina

In total, they examined nearly 416,000 people who received a first dose of Sputnik V, including about 40,400 people aged 60 to 79 years. The study showed that the vaccine was 78.6% effective in preventing Covid-19 infections, 87.6% in reducing hospitalizations, and 84.8% in preventing deaths of people aged 60 to 79 years.

In eight other studies analyzed by the researchers, the four vaccines Pfizer-BioNTech, AstraZeneca / Oxford, Moderna and Johnson & Johnson have an efficacy of 51 to 76% in the prevention of serious infections, 66.9 to 91% in the prevention of hospitalizations and from 85 to 91% in preventing death, also for a single injection.

Figures taken from the press release published on September 13 from the Russian Direct Investment Fund (which participates in the production of Sputnik V vaccines) which states: “The Sputnik Light vaccine is based on a well-studied human adenoviral vector which has been shown to safe and effective, without long-term adverse effects, as confirmed by more than 250 clinical trials conducted around the world over the past two decades (while the history of the use of human adenoviruses in vaccines has begun development in 1953). ” The text also mentions the fact that “Sputnik Light has been shown to be effective against all new strains of coronavirus, as demonstrated in laboratory tests at the Gamaleïa Center.”



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