How Pfizer delivered a Covid vaccine in record time
> To assemble its mRNA production network, Pfizer used its own money and didn’t take any from the federal government. Executives said they didn’t want to give agencies outside the FDA more leverage over the design of the trials.<p>> Rival Moderna, which took funding from a division of the U.S. Department of Health and Human Services, suffered a three-week delay in completing its own mRNA trial after federal officials there asked the company to slow down enrollment to boost the racial and ethnic diversity of study subjects.