Just in case anyone is concerned about how fast the COVID-19 vaccines were produced: it is because they are variants of the SARS vaccine, which we've had for more than a decade.

COVID-19 can be treated with a variant of the SARS vaccine because COVID-19 is a variant of SARS. The virus that causes SARS is SARS-CoV, and the 2019 novel coronavirus is SARS-CoV-2.

Because of this, researchers had a vaccine ready for testing as early as January 2020. The COVID-19 vaccine had, in fact, nearly a full year of testing and refinement. It is not by any means "experimental" or "untested".


@noelle which specific vaccine are you referring to?

@ashwin_baindur As it happens, this is true of all of the available vaccines. If memory serves, it was Pfizer that was ready for testing in January 2020; AZ and Moderna were in testing within a month of that.

@noelle without casting doubt on your assertion, I recall that the vaccines were prepared with a variety of different technologies, including at least one that was absolutely new, hence I think that that particular belief may not be accurate.

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