For safety purposes, nearly 45,000 people, the same number as any vaccine trial, had to be tested within the same time frame.
According to professor Heidi Larson, director of the Vaccine Confidence Project, the process was shortened by efficiencies that have never been seen before. Following the Ebola crisis, emergency funding mechanisms were put in place in case of an emergency. In this way, money could be allocated very quickly, unlike for previous vaccines.
In addition, the use of new techjnologies, including mRNA, which is what the Pfizer and BioNTech uses, has sped things up, as has any administration procedures that can often put the breaks on scientific advances.
“The safety regulatory process is still there but the time frame between things, they’ve tried to shorten, just in terms of it’s not sitting in a pile of things to be approved,” she added.