Pfizer Says Its COVID-19 Vaccine 90 Percent Effective

• Mr. Moises Barbosa 11/17/2020 12:05 PM

  I am from Araripe,CE., Brazil and I thought it was a very good subject from VOA in Wasghington D.C., U.S.A. Thank you for his vey nice information about this vaccine

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• thank you 11/17/2020 8:40 AM

  thank you so much

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