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Six people died in the late stage of Pfizer’s COVID-19 vaccine trial, but the deaths do not raise new safety concerns or questions about the vaccine.
Two people who received the experimental vaccine had died during the trial, and four others who died were taking a placebo.
The disclosure was made by the US Food and Drug Administration just after Britain became the first country in the world to implement the vaccine.
But the deaths are said to raise no new safety concerns or questions about the vaccine’s effectiveness because they all represented events that occurred in the general population at a similar rate, the FDA concluded.
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The Pfizer and BioNTech vaccine trial was 95% effective in preventing coronavirus infections.
“All deaths represent events that occur in the general population of the age groups in which they occurred, at a similar rate,” says one report.
The report says the data shows that the vaccine is only 52 percent effective after the first dose, but the success rate is higher after a second dose.
However, the long-awaited results of the University of Oxford and AstraZeneca analysis for its coronavirus vaccine confirm that it is safe and highly effective in preventing Covid-19.
The Independent UK says that data from trials published in The lancet has reaffirmed that jab is 90% effective if given in half the dose and then the full dose, or 62% effective if given in two full doses.
The newspaper says this is the first time the results of a large-scale trial have been reported for any coronavirus vaccine.
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