Scientists Are Working On Booster Shots In Case COVID-19 Vaccines Lose Their Effect

Retrieved on: 2021-04-22 20:25:12

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Scientists Are Working On Booster Shots In Case COVID-19 Vaccines Lose Their Effect. View article details on hiswai:

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MARY LOUISE KELLY, HOST: The COVID vaccines available in the United States today work extremely well at preventing illness, but there are still ...

Article found on: www.npr.org