Pfizer signs are seen at the third China International Import Expo (CIIE) in Shanghai, China November 5, 2020.
Aly Song | Reuters
Friday’s announcement came two days after Pfizer said a final data analysis found its coronavirus vaccine with BioNTech was 95% effective in preventing Covid-19, was safe and appeared to fend off severe disease.
The final analysis evaluated 170 confirmed Covid infections among the late-stage trial’s more than 43,000 participants. The companies said 162 cases of Covid were observed in the placebo group versus eight cases observed in the group that received its two-dose vaccine. That resulted in an estimated vaccine efficacy of 95%, they said.
Pfizer is the first frontrunner in the Covid-19 vaccine race to apply for emergency use with the FDA. Its vaccine contains genetic material called messenger RNA, or mRNA, which scientists expect provokes the immune system to fight the virus. The vaccine requires a storage temperature of minus 94 degrees Fahrenheit, potentially posing challenges for widespread distribution. By comparison, Moderna’s vaccine must be stored at minus 4 degrees Fahrenheit.
Pfizer announced on July 22 that the U.S. agreed to buy 100 million doses of its vaccine for up to $1.95 billion. The agreement, part of the Trump administration’s vaccine program Operation Warp Speed, allows the U.S. to acquire an additional 500 million vaccine doses. Pfizer CEO Albert Bourla said on Nov. 9 that the company is on track to produce up to 50 million vaccine doses this year and up to 1.3 billion doses in 2021.
If Pfizer’s application is OK’d by the FDA, the vaccine will likely be limited and rolled out in several phases, with health-care workers, the elderly and people with underlying health conditions getting vaccinated first. Essential workers, teachers and people in homeless shelters as well as people in prisons would likely be next on the list, followed by children and young adults.
Dr. Anthony Fauci, the nation’s leading infectious disease expert, has said a vaccine could be available to all Americans by April or July of next year.
This is a developing story. Please check back for updates.