Updated 10:50 a.m. ET, November 24, 2020
- US Covid-19 cases could reach 20 million by Inauguration Day on Jan. 20, according to a new modeling forecast from Washington University in St. Louis.
- AstraZeneca says its experimental coronavirus vaccine developed with the University of Oxford has shown an average efficacy of 70% in large-scale trials.
- The first Americans to receive a Covid-19 vaccine could be immunized as early as the second week of December, the White House vaccine chief said.