Moderna said preliminary phase three trial data shows its coronavirus vaccine is more than 94% effective in preventing Covid-19 — a result CEO Stephane Bancel called a “game changer.”
The analysis evaluated 95 confirmed Covid-19 infections among the trial’s 30,000 participants. Moderna, which developed its vaccine in collaboration with the National Institute of Allergy and Infectious Diseases, said 90 cases of Covid-19 were observed in the placebo group versus five cases observed in the group that received its two-dose vaccine. That resulted in an estimated vaccine efficacy of 94.5%, it said.
