BUSTING COVID-19 VACCINE MYTHS Myth: Covid-19 vaccines are unsafe because they were developed too fast
Posted on 1/26/2021 by Michael Mettler
Myth: Covid-19 vaccines are unsafe because they were developed too fast
Fact: The coronavirus vaccines that are now being deployed have undergone strict and rigorous clinical trials involving thousands of human participants after initial animal trials.
Vaccine makers have insisted that no corners were cut and trial results have proved the vaccines are safe and effective. Before being authorized for use, trial data from the vaccines — such as those made by Pfizer-BioNTech, Moderna and the University of Oxford-AstraZeneca — have undergone strict scrutiny by regulators including the U.S. Food and Drug Administration, the European Medicines Agency and Britain’s Medicines and Healthcare products Regulatory Agency. In late-stage clinical trials, both the Pfizer-BioNTech and Moderna vaccines were found to be 95% and 94.1% effective, respectively, at preventing severe Covid-19 infection. The vaccine developed by the University of Oxford and AstraZeneca was found to have an average efficacy of 70%.
When the U.K. in early December became the first country to approve the Pfizer-BioNTech vaccine, Dr. June Raine, chief executive of the U.K.’s MHRA, said no corners had been cut in its approval, saying experts had worked “round the clock, carefully, methodically poring over tables and analyses and graphs on every single piece of data.”
The MHRA’s scientists and clinicians conducted a “rolling review” of the data as it was made available during clinical trials, hence allowing it to speed up its assessment of the vaccine and whether to authorize it. This was critical, the MHRA said, given the public health emergency.
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