As a half assed chemist (BS-1969),it seems to me that it would be very hard to always construct these molecules without error or contamination, especially at -70F.
https://www.technologyreview.com/2020/12/09/1013538/what-are-the-ingredients-of-pfizers-covid-19-vaccine/ How many times can you be lied to, if you don’t know the truth? L. Zang
