UNLV Immunologist on the Differences Between Two Leading COVID-19 Vaccine Candidates

Millions around the world have waited for news about a COVID-19 vaccine, regarding it as the beginning of the end for the global pandemic and a herald for the eventual return to “normal life.” Recent announcements from pharmaceutical companies Pfizer and Moderna that their respective late-stage vaccine trials have shown a 90% or better effectiveness rate have received international applause, excitement furthered with estimates that doses could be ready as early as December.