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Data from the AstraZeneca COVID-19 vaccine rollout suggests that one dose of the vaccine leads to 80% lesser risk of death from the disease, stated Public Health England.
It further stated that protection against death provided by the Pfizer-BioNTech vaccine increases from about 80% after one dose to 97% after two doses, according to a new analysis. The study assessed new symptomatic cases of COVID-19 from December through April and individuals who died within 28 days of their positive test by vaccination status. Those who had had one dose of AstraZeneca vaccine were 55% protected against death, while there was 44% protection after a single dose of Pfizer vaccine, in comparison with unvaccinated people. A PHE statement said, "Combined with the protection vaccines offer against becoming a case in the first place, this is equivalent to approximately 80% protection against mortality in individuals vaccinated with a single dose of either vaccine." (ET Healthworld – Reuters, May 11, 2021)
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