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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.
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.
On 29 June 2021, the director of the Gamaleya Institute, Denis Logunov, said that Sputnik V is about 90% effective against the Delta variant. [81] On July 21, researchers from PHE published a study finding that the Pfizer vaccine was 93.7% effective against symptomatic disease from Delta after 2 doses, while the Astrazeneca vaccine was 67% ...
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]
Alexander Gintsburg is the head of the Gamaleya Institute -- the organization that produced Russia's Sputnik V vaccine. Its development is coming at a rapid pace -- amid what he calls "wartime ...
Relevant to how vaccines can end the pandemic by preventing asymptomatic infection, they have also indicated possibly reduced antibody neutralization against Beta with most of the widely distributed vaccines (Oxford–AstraZeneca, Sputnik V, Janssen, Pfizer–BioNTech, Moderna, Novavax; minimal to substantial reduction) except CoronaVac and ...
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.
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 ...