COVID-19 vaccines were developed in record time – but are these game-changers safe?
- Written by William Petri, Professor of Medicine, University of Virginia

There are now two COVID-19 vaccines that, at least according to preliminary reports, appear to be 94.5% and 95% effective. Both were developed in a record-breaking 11 months or so.
I am an infectious diseases specialist and professor at the University of...
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