Health
Explained: Why RNA vaccines for Covid-19 raced to the front of the pack – MIT News
Many years of research into RNA vaccines, at MIT and elsewhere, helped scientists to quickly develop and test such vaccines against Covid-19.
Developing and testing a new vaccine typically takes at least 12 to 18 months. However, just over 10 months after the genetic sequence of the SARS-CoV-2 virus was published, two pharmaceutical companies applied for FDA emergency use authorization of vaccines that appear to be highly effective against the virus.
Both vaccines are made from messenger RNA, the molecule that cells naturally use to carry DNAs instructions to cells protein-building machinery. A vaccine based on mRNA has never been approved…
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