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COVID-19 Vaccine: Will It Protect Against New Variants And Do You Need A 2nd Dose?

By Joanne Silberner
Published February 2, 2021 at 5:00 AM EST
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Joanne Silberner
Joanne Silberner is a health policy correspondent for National Public Radio. She covers medicine, health reform, and changes in the health care marketplace.
See stories by Joanne Silberner