Background: The COVID-19 Pfizer BNT162b2 vaccine, let’s just call it the COVID-19 Pfizer vaccine (so I don’t have to keep writing BNT162b2) is a novel mRNA vaccine developed to give immunity against the SARS CoV2 virus. It is synthesized mRNA packaged in small lipid nanoparticles but must be stored at extremely low temperatures (-70 C and … Continue reading COVID-19 Update: The COVID-19 Pfizer Vaccine