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Scientists report the earliest known #coronavirus infections in 5 U.S. states. The 1st infection was confirmed on 1/21/20 in Washington state. Blood drawn from 9 people early in the pandemic tested positive. But some experts are questioning the results https://t.co/mVP28RxTK5 pic.twitter.com/cUKQ10y7mF
— delthia ricks 🔬 (@DelthiaRicks) June 20, 2021
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weehingthong 