Why are global health leaders slamming COVID-19 booster shots right now?

The World

A handful of countries and vaccine developers are already preparing for COVID-19 boosters. It's causing tension for the global response because many parts of the world still lack access to any vaccines. Host Marco Werman speaks with Dr. Kawsar Talaat, a vaccine researcher and global health professor at Johns Hopkins Bloomberg School of Public Health, about why moving forward with boosters now would complicate the pandemic response.

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