Promising data in U.S. AstraZeneca vaccine trials, 100% effective vs. severe or critical disease

The much-anticipated trial data for a fourth vaccine here in the u-s is out and looking promising. Officials are wondering when AstraZeneca might be added to the covid vaccine arsenal that includes Pfizer, Moderna, and Johnson & Johnson. This as officials try to crack down on spring breakers partying which experts say is leading to a surge in new cases. ABC's Reena Roy has the latest.