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COVID-19 vaccine trial begins testing children | WNT

Pfizer is the first to test a COVID-19 vaccine on children. Wisconsin opened field hospitals as the state saw 3,000 new cases in 24 hours. WATCH THE FULL EPISODE OF 'WORLD NEWS TONIGHT': WATCH OTHER FULL EPISODES OF WORLD NEWS TONIGHT: WATCH WORLD NEWS TONIGHT ON HULU: #WorldNewsTonight #COVID19 #Vaccine #Pfizer

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