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  • People infected with COVID remain contagious up to nine days after testing positive

    Apr 29, 2022 1:45 pm by United Press InternationalIllinois in the News
    New research suggests COVID-19 spread differs among cases and variants. File photo by John Angelillo/UPI

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    • New research suggests COVID-19 spread differs among cases and variants. File photo by John Angelillo/UPI

    UPI (April 28) A new study at the University of Illinois may help explain why the COVID virus appears to spread so easily - and quickly - in some cases but not in others.