New study shows effectiveness of COVID-19 booster
ABC News chief medical correspondent Dr. Jen Ashton breaks down a new study by the CDC on the booster shot’s effectiveness.
January 26, 2023
Top Stories

9:02
How AI is impacting college classrooms
- 6 hours ago

1:56
The rising cost of college move-in day
- 9 hours ago

4:13
Anthropic to watermark AI-generated text
- 9 hours ago
ABC News Live Presents
A variety of news and talk shows featuring our flagship programming.
21:27
Daddy Yankee: A Higher Note
- Nov 20, 2025

24:43
Gut Check: The Foods We Eat
- Nov 19, 2025

22:59
All Access with Linsey Davis: Andrew Cuomo
- Oct 30, 2025

24:14
The Children of Gaza
- Oct 11, 2025

24:06
The Playlist Presents: Dale Play!
- Sep 26, 2025









































































