UIUC-tests2_770x513

University of Illinois chemist Paul Hergenrother collects a saliva sample for a COVID-19 test he helped develop for the campus.(CHRISTINE HERMAN/ILLINOIS PUBLIC MEDIA)

University of Illinois chemist Paul Hergenrother collects a saliva sample for a COVID-19 test he helped develop for the campus.(CHRISTINE HERMAN/ILLINOIS PUBLIC MEDIA)

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