Nov 23, 2020

Oxford-AstraZeneca vaccine 70% effective on average at preventing COVID-19

Lisa Maree Williams/Getty Images

Tweaking the vaccine dose can improve its efficacy. Plus, what's the cost of not getting a vaccine to everyone in the world? And, China proposes a QR code system to open up international travel.

The team

David Brancaccio Host

Victoria Craig Host, BBC

Stephen Ryan Senior Producer, BBC

Jonathan Frewin Producer, BBC

Daniel Shin Producer

Jay Siebold Technical Director

Brian Allison Engineer

Meredith Garretson Senior Producer

Erika Soderstrom Producer

Rose Conlon Producer

Alex Schroeder Producer

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