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An article published by the journal Nature on 6 July 2021 cited data released by the United Arab Emirates on some 81,000 individuals who had received Sputnik V, according to which the vaccine demonstrated an efficacy of 97.8% in preventing symptomatic COVID-19, and 100% efficacy in preventing severe complications.
Retrospective cohort study of the effectiveness of two Russian vaccines against the SARS-CoV-2 Delta variant in Moscow (June–July 2021) proved that EpiVacCorona, unlike Sputnik V, is an ineffective vaccine and therefore cannot protect against COVID-19.
A vaccine is generally considered effective if the estimate is ≥50% with a >30% lower limit of the 95% confidence interval. [6] As of September 2021, no study on Sputnik Light reported confidence intervals, so it is not possible to know the accuracy of the estimates. Effectiveness is generally expected to slowly decrease over time. [7]
He also defended the vaccine's early registration for public use, saying it was the most ethical approach. Russia plans to test in several countries, including Belarus, Brazil and India.
English: Sputnik V efficacy for different conditions. Data from: Logunov D. Y. et al. Safety and efficacy of an rAd26 and rAd5 vector-based heterologous prime-boost COVID-19 vaccine: an interim analysis of a randomised controlled phase 3 trial in Russia.
The Sputnik V vaccine, widely used in Russia and approved for use in more than 70 countries, is still undergoing a review by the World Health Organization (WHO) and the European Medicines Agency.
(Bloomberg Opinion) -- There was no clearer way of signaling how Russia sees its coronavirus vaccine: Moscow named it Sputnik, after the satellite whose launch in 1957 marked the start of the ...
The two locally produced vaccines, Nanocovax and COVIVAC, were put on trial on January to March 2021, respectively. [143] [144] On 21 July 2021, the first test batch of Russia's Sputnik V vaccine has been produced in Vietnam, according to Russia's sovereign wealth fund RDIF and Vietnamese pharmaceutical company Vabiotech. The first validation ...
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