Resource: Pfizer’s COVID-19 Vaccine Proves 90% Effective in Latest Trials
Source: Wall Street Journal
Synopsis: A coronavirus vaccine developed by Pfizer Inc. and partner BioNTech SE showed in an early analysis to be more than 90% effective in protecting people from COVID-19, a much-better-than-anticipated result that marks a milestone in the hunt for shots that can stop the pandemic.
Comment: Pfizer originally stated their COVID-19 vaccine had 90% efficacy. Shortly thereafter, Moderna released an analysis of its vaccine which revealed 95% efficacy. Within several days Pfizer changed their statement and stated their vaccine was 95% efficacious, similar to the Moderna vaccine. This was an interesting change of efficacy. Practically speaking, the Pfizer vaccine must be stored at -70°F requiring specialty storage facilities available only in hospitals and or universities. The Moderna vaccine can be stored at -20°F making it more user-friendly for distribution to clinics, outpatient facilities and or pharmacies.
