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Covid-19 plagued the world for most of 2020, but at the end of the year, vaccines developed and approved at record speed started to become available for use. With the largest vaccination drive in history under way, what are the differences between the Covid-19 vaccines? How effective are they? What are the potential side effects of some of the vaccines, what are the dosage requirements and how will they get to you? Here’s what you need to know about the Covid-19 vaccine front-runners.
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