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The effectiveness of COVID-19 vaccines, or any other vaccine, is determined in a mass vaccination in a "real-world" setting (not in clinical trials). This is an assessment of how well the vaccine protects people from outcomes such as infection, symptomatic illness, hospitalization, and death.
Pfizer and Moderna vaccines are both safe and have similar effectiveness at preventing COVID-19 illness. Clinical trial data when they were first released in December 2020 showed 95% efficacy for ...
EpiVacCorona (Russian: ЭпиВакКорона, romanized: EpiVacCorona) is a peptide-based vaccine against COVID-19 developed by the Russian VECTOR Center of Virology. [2] [3] The lack of protective effectiveness of EpiVacCorona, which is still in use in Russia, has been reported in scientific literature [4] and in the media.
[353] [354] [355] Aiming for a realistic population vaccination coverage rate of 75%, and depending on the actual basic reproduction number, the necessary effectiveness of a COVID-19 vaccine is expected to need to be at least 70% to prevent an epidemic and at least 80% to extinguish it without further measures, such as social distancing.
Russia was quick to develop its two-dose Sputnik V vaccine last year and has also deployed a one-shot Sputnik Light vaccine, both of which have it says demonstrated high efficacy in trials, but ...
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 ...
The COVID-19 vaccination campaign in the United States is an ongoing mass immunization campaign for the COVID-19 pandemic in the United States.The Food and Drug Administration (FDA) first granted emergency use authorization to the Pfizer–BioNTech vaccine on December 10, 2020, [7] and mass vaccinations began four days later.
This man may hold the cure to the coronavirus pandemic in his hands. Alexander Gintsburg is the head of the Gamaleya Institute -- the organization that produced Russia's Sputnik V vaccine. Its ...