Skip to main content
Back to Show
PBS News Hour

Trial data shows AstraZeneca vaccine 79 percent effective

In the largest COVID vaccine trial yet, AstraZeneca's vaccine was 79 percent effective in preventing symptomatic infections, the company announced Monday. AstraZeneca's vaccine has also been shown to be extremely effective at preventing the most serious outcomes from COVID-19, the company said. William Brangham discusses the latest inoculation news with Boston University's Dr. Nahid Bhadelia.

Support Provided By
Season
October 11, 2025 - PBS News Weekend full episode
26:45
October 11, 2025 - PBS News Weekend full episode
October 10, 2025 - PBS News Hour full episode
57:46
October 10, 2025 - PBS News Hour full episode
October 9, 2025 - PBS News Hour full episode
57:46
October 9, 2025 - PBS News Hour full episode
October 8, 2025 - PBS News Hour full episode
57:46
October 8, 2025 - PBS News Hour full episode
October 7, 2025 - PBS News Hour full episode
57:46
October 7, 2025 - PBS News Hour full episode
October 6, 2025 - PBS News Hour full episode
56:45
October 6, 2025 - PBS News Hour full episode
October 5, 2025 - PBS News Weekend full episode
26:45
October 5, 2025 - PBS News Weekend full episode
October 4, 2025 - PBS News Weekend full episode
26:45
October 4, 2025 - PBS News Weekend full episode
October 3, 2025 - PBS News Hour full episode
57:46
October 3, 2025 - PBS News Hour full episode
October 2, 2025 - PBS News Hour full episode
57:46
October 2, 2025 - PBS News Hour full episode
October 1, 2025 - PBS News Hour full episode
57:46
October 1, 2025 - PBS News Hour full episode
September 30, 2025 - PBS News Hour full episode
57:46
September 30, 2025 - PBS News Hour full episode
Active loading indicator