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2 Companies Say Their Vaccines Are 95% Effective. What Does That Mean?

Virual stuff November 20, 2020 NYT

By BY CARL ZIMMER from NYT Health https://ift.tt/2Kt3KuT

2 Companies Say Their Vaccines Are 95% Effective. What Does That Mean?

2 Companies Say Their Vaccines Are 95% Effective. What Does That Mean?

Reviewed by Virual stuff on November 20, 2020 Rating: 5

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