15. COVID-19 Vaccine Breakthrough (2020-2021)
The swift development and deployment of COVID-19 vaccines by American scientists represented a historic triumph in public health and innovation. In record time, the United States helped lead the global response to an unprecedented pandemic, saving countless lives and paving the path to recovery. This breakthrough stands alongside earlier vaccine milestones, such as polio and smallpox, as a testament to American ingenuity and dedication. More from the CDC.
