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Study will track Covid-19 transmissions by studying university students

Researchers at the National Institute of Health have launched a massive new effort to see whether vaccinated individuals still need to wear masks. The study called PreventCovidU will study about 12,000 college students from 22 universities to examine Covid-19 transmissions. Meg Tirell joins ‘The News with Shepard Smith’ to discuss.
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Fri, Mar 26 20217:12 PM EDT