New research from AstraZeneca could lead to the U.S. getting a fourth COVID vaccine soon.
Dr. Mallika Marshall reports.
AstraZeneca Vaccine
WDEF CBS Chattanooga, TN
We talk to local doctors about the next Covid vaccine from AstraZenaca.
AstraZeneca Could Soon Be Fourth U.S. COVID Vaccine Based On New Research
Credit: WBZ CBS Boston
Duration: 02:08s
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