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The figures echoed similar findings from unpublished data on 3.8 million Russians, according to which Sputnik V demonstrated an efficacy of 97.7%. [207] A study published by the Journal of Medical Internet Research analyzed the dataset consisted of 11,515 self-reported Sputnik V vaccine adverse events posted on Telegram.
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]
The study found that in a sample size of 2,000 the AZD1222 vaccine afforded only "minimal protection" in all but the most severe cases of COVID-19. [39] On 7 February 2021, the South African government suspended the planned deployment of around 1 million doses of the vaccine whilst they examined the data and awaited advice on how to proceed. [40]
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 head of the Russian Direct Investment Fund (RDIF) stated that 20 countries had requested in total 1 billion doses of the vaccine, nicknamed Sputnik V. [11] On August 20 registration was called "conditional" with final registration depends on results of Phase 3 trial, [12] such registration is limited and allowed by Decree 441 for medicines ...
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 ...
Vaccines from AstraZeneca , Russia's Gamaleya Institute and Johnson & Johnson fight the coronavirus with another virus, leaving scientists concerned the shots may lose potency if annual ...
[2] The plasmid is produced using E. coli cells. [2] The vaccine is given as an intradermal injection using a spring-powered jet injector. [2] [3] This is because successful transfection of DNA vaccines requires traveling across both the cell plasma membrane and the nuclear membrane, [4] and using a conventional needle gives poor results and ...