Today in History: December 14, Vaccinations begin as COVID-19 death toll hits 300,000
- Posted on December 14, 2025
- By The Denver Post
- 19 Views
Today in History: December 14, Vaccinations begin as COVID-19 death toll hits 300,000

The largest vaccination campaign in U.S. history began with health workers getting shots on the same day the nation’s COVID-19 death toll hit 300,000.