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Pfizer vaccine found to be effective among elderly after just 1 dose

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Data out of the United Kingdom suggests that just a single dose of the Pfizer vaccine helped reduce the possibility of getting sick by 80 percent among the elderly. NBC’s Tom Costello reports for TODAY.

Appearing:Savannah Guthrie
Tags: health, news, Health Tips, Editor's picks, big news, coronavirus, Plan Your Vaccine, today
S2021 E01 minHighlightNews and InformationDaytime


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