Three years in: What we’ve learned about COVID

Three years ago this week, Colorado recorded its first known cases of COVID-19. A week later, on March 12, CU Boulder announced its first positive case and quickly shifted to fully remote classes. Meanwhile, researchers at CU and universities across the country jumped into action to learn everything they could about the virus, including how to test for and trace it; how to prevent its spread; and how to develop a vaccine to reduce its death toll.