One of the biggest misunderstandings about the COVID-19 vaccines is that many people feel as if they were developed too quickly. This is understandable and can be easy to think when a vaccine appears to be ready within months of a new organism being discovered. Unlike most medications, vaccine technologies, once developed, can easily be adapted to include different organisms. The vaccine technologies found in the current COVID-19 vaccines existed long before 2020 and COVID-19. They were developed to help deliver protection against a wide variety of other diseases and were already being studied in humans for other novel and rare infections.
These vaccine technologies have a unique advantage over other types of vaccine delivery systems in that they can be produced quickly and in large numbers. When the COVID-19 pandemic began, scientists turned to these technologies to see if they could be used to deliver much needed immunity. This helped decrease the time needed to produce and study the vaccine.