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COVID Variants May Emerge That Are Not Covered By Vaccine, Scientists Warn | Voice of America ...

Retrieved on: 2021-05-09 09:45:00

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COVID Variants May Emerge That Are Not Covered By Vaccine, Scientists Warn | Voice of America .... View article details on hiswai:

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The Pfizer-BioNTech vaccine was more than 97% effective in preventing severe illness and death in the Qatari study, for example. "Even if you have a ...

Article found on: www.voanews.com

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