Results from clinical trials have shown that the world has three apparently highly effective vaccines for Covid-19. With the race now on for regulatory approval, production and distribution, is the end of the pandemic within reach?
After a gruelling year of successive waves of Covid-19 infections and national lockdowns there has been a burst of good news this month, with three separate vaccine candidates performing extremely well in clinical trials.
First, Pfizer and Moderna announced that their vaccines were testing at an efficacy of around 95%. Then came the news that the AstraZeneca vaccine (the one pre-ordered in bulk by the UK government) was hitting 90%. It marks not just a new phase in the Covid-19 pandemic but potentially a revolution in vaccine technology itself.
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