How were researchers able to develop it so quickly?
Researchers used years of previous research in other viruses and vaccines to help inform a vaccine development process for COVID-19.
For the past year, everyone involved dedicated all their resources and time to developing the COVID-19 vaccine. This includes research institutions, pharmaceutical companies, government agencies, and philanthropic organizations.
Many governments around the world, including the U.S. government, and private funders invested in the vaccine, which allowed pharmaceutical companies to focus on research and clinical trials instead of fundraising, one of the most time-consuming parts of vaccine development.
Finally, because of the financial support, researchers were able to conduct different parts of the development process at the same time instead of one after another, shortening the process. No steps were skipped in the process of developing the COVID-19 vaccines.